Use Cases

201 results

Use Case

7x7 Beam Splitter in 2f Setup with a VCSEL Source

Physical optics enables the access to any kind of light information in the desired image plane.

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Use Case

Aberration Effects of a Spherical Wave at the Focal Spot

Different types of wavefront aberrations are selected exemplarily, and the resulting focal spots are investigated for varying strength of the aberrations.

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Aberration Effects on Focused Modes from a Fiber Source

In this use case we demonstrate how the shape of a set of modes generated by either a step- or graded-index fiber.

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Absorption in a CIGS Solar Cell

A solar cell based on copper indium gallium selenide (CIGS) is simulated, and the absorption in the CIGS layer calculated.

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Advanced PSF & MTF Calculation for System with Rectangular Aperture

By placing a rotated rectangular aperture behind input fields with different sizes, the PSF and MTF in the focal plane are investigated.

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Advanced PSF Calculation in a High-NA Lens System

When a linearly polarized Gaussian beam is focused by a high-NA aspheric lens, the PSF in focal plane shows asymmetry due to vectorial effects.

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Use Case

Advanced PSF and MTF Calculation of Imaging System

An imaging system consisting of a collimation objective and human eye is modeled, and by changing the illumination conditions, the cases with fully and partially illuminated apertures are investigated.

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Use Case

Afocal Systems for Laser Guide Stars

Within VirtualLab Fusion, we demonstrate the analyze afocal systems for the generation of laser guide stars, and further optimize the system to control the size of the artificial stars.

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Analysis and Design of Highly Efficient Polarization Independent Transmission Gratings

We demonstrate how to analyze the polarization-dependent property of binary gratings rigorously, also to optimize the binary structures...

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Use Case

Analysis of CMOS Sensors with Microlens Array

Using the rigorous FMM/RCWA, we simulate a CMOS sensor with pixel size equal to or below 2µm, and the influence of diffraction effects at such a small...

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Use Case

Analysis of Folded Imaging System with Multiple Apertures

For a folded waveguide-based imaging system, the multiple apertures effect, including in- and outcoupling gratings and pupil aperture, is shown to affect the PSF and MTF on image plane.

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Use Case

Analysis of Folded Imaging System with Planar or Curved Waveguide

To evaluate the image quality of a near-to-eye display system, it is important to include the influence from the waveguide structure. In this example, both planar and curved waveguide are investigated.

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Use Case

Analysis of Off-Axis Imaging by a High-NA Microscope

It is demonstrated that the PSF is distorted due to the aberration caused by off-axis imaging.

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Use Case

Analysis of PSF of a Dipole Source by a High-NA Microscopy System

It is demonstrated that the PSFs have different shapes when the orientation of the dipole source changes.

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Use Case

Analysis of Slanted Gratings for Lightguide Coupling

Different slanted grating geometries are selected from literature, with varying slant angle, fill factor, and modulation depth, and the diffraction efficiencies are calculated with the Fourier modal method (FMM).

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Use Case

Analysis of an Offner System with Non-Sequential Field Tracing

An Offner system that consists of two concentric spherical mirrors is built up and its imaging property is investigated by using the non-sequential field tracing in VirtualLab.

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Use Case

Angular-Filtering Volume Gratings for Suppressing Higher Diffraction Orders

We construct an angular-filtering volume grating and apply it in a system to suppress the undesired higher diffraction orders from a beam splitting DOE.

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Use Case

Basic structure-based source model for an OLED

This document begins to showcase the structure-based OLED modeling capabilities of VirtualLab Fusion through a series of optical design use cases...

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Use Case

Beam Splitter Cube

This use case demonstrates two examples for a real beam splitter component – one polarizing and one non-polarizing. (optical design setup)

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Use Case

Bessel Beam Generation behind a Fiber with a Holographic Optical Element

We use a HOE that combines the lens and axicon function to generate Bessel beam from the output of a single-mode fiber.

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Use Case

Birefringence Effect of Anisotropic Calcite Crystal

Have a look at the simulation of birefringence in VirtualLab Fusion and investigates the dependence of the effect on input polarization and crystal thickness.

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Use Case

Catadioptric Imaging System Based on Pancake Lenses

This use case analyzes the performance a folded imaging system by investigating the polarization state changes throughout the system...

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Use Case

Chromatic Aberration Correction by an Idealized Diffractive Lens in a Hybrid Eyepiece Model

A hybrid eyepiece with an idealized diffractive lens surface for correcting chromatic aberration is imported from OpticStudio® and analyzed in detail.

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Use Case

Chromatic Effect Analysis in Fluorescent Microscopy

By taking a fluorescent microscope as example, we analyze the chromatic effect for the high-NA objective lens, at the emitting wavelength and illumination wavelength, respectively.

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Use Case

Circularly Serrated Aperture for Beam Apodization

Beam apodization plays a key role in the design of high-energy lasers and beam-delivery systems.

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Use Case

Coherence Measurement Using Michelson Interferometer and Fourier Transform Spectroscopy

It is demonstrated that the fringe contrast in a Michelson interferometer with a light source of certain bandwidth varies when the optical path difference changes.

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Use Case

Coherence Measurement with White-Light Interferometry – Analysis Using Distributed Computing in VirtualLab Fusion

To speed up your optical design process, the coherence measurement is performed using distributed computing in VirtualLab Fusion.

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Use Case

Collimation Testing with Shearing Interferometry

We show how to build up a shearing interferometer for the testing of laser beam collimation. By changing the collimation lens system, we observe the change in the interference fringes.

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Use Case

Collimation of Astigmatic Diode Laser Beam by Objective Lens

High-power laser diodes often exhibit asymmetric divergence and astigmatism. Collimation of such a laser diode is investigated with both ray tracing and field tracing.

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Use Case

Collimation of a Spherical Wave by an OAP Mirror

This use case presents a simulation of a spherical wave collimated by an off-axis parabolic (OAP) mirror with different off-axis angle configurations...

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Use Case

Comparison of Different Lenses for Fiber Coupling

For the task of coupling light into a single-mode fiber, two commercially available lenses are selected, and their performance are evaluated by using the overlap integral.

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Use Case

Complementary Interference Pattern in a Mach-Zehnder Interferometer

A Mach-Zehnder interferometer with a coherent laser source is build up in VirtualLab Fusion and analyzed by using the non-sequential Field Tracing.

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Use Case

Complex Lightguide System with a 2D Eye Pupil Expansion and Human Eye Model

A complex lightguide system, including a 2D-periodic exit pupil expander in combination with slanted gratings in the outcoupler, is presented. PSF and MTF as well as lateral uniformity are evaluated.

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Use Case

Components, Solvers and Fourier Domains – Plane Surface

Both Fourier domains (space and spatial frequency) can be used as the domain of implementation for solvers in VirtualLab Fusion. We discuss the implications and analyze the plane surface as a special case.

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Use Case

Compound Refractive Lens for X-Ray Focusing

Compound refractive lenses, which consists of tens or hundreds of individual cylindrical lenses, are used to focus x-ray fields one- and two-dimensionally.

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Use Case

Conical Refraction in Biaxial Crystals

The conical refraction from a KGd crystal is demonstrated with the fast-physical-optics simulation technology in VirtualLab Fusion.

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Use Case

Customize Optical Trees Suitable to your Workflows

VirtualLab Fusion provides a wide array of solutions for diverse applications, offering numerous sources, components, and detectors in the Optical Setup.

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Use Case

Czerny-Turner Setup

The Czerny-Turner setup – a famous historical example of a monochromator – is demonstrated in this use case, including an further application.

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Use Case

Demonstrating the Working Principle of Flash LiDAR

A flash LiDAR system, consisting of array of sources, collimation lens system, and diffractive grating, is constructed and its working principle is shown in both the spatial and the spatial frequency domains.

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Use Case

Demonstration of Abbe's Theory of Image Formation

We build up an imaging system, use metal-grid gratings as the test objects, and demonstrate Abbe’s theory on image formation with VirtualLab Fusion.

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Use Case

Demonstration of the Functional Principle of a Dot Projec

This Use Cases shows the working principle of a dot projector, including a comparision between an idealized and real design of a diffractive beam splitter.

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Use Case

Demonstration of van Cittert-Zernike Theorem

In this document, we investigate the interference of Yong’s double-slit setup with an extended, partially coherent source, and demonstrated the van Cittert-Zernike theorem.

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Use Case

Design & Analysis of Diffractive Splitter Generating a Light Mark

This use case demonstrates VirtualLab Fusions's capabilities to design and analyze a system with a diffractive beam splitter used to generate a light mark.

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Use Case

Design & Analysis of System with Diffractive Light Diffuser Generating the LightTrans Logo

This use case demonstrates that VirtualLab Fusion can efficiently be used for the design, optimization, modeling and simulation of a diffractive....

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Use Case

Design and Analysis of Intraocular Diffractive Lens

We show the import of an intraocular diffractive lens design (Zemax OpticStudio®) into VirtualLab Fusion and optimize the structure for better performance.

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Use Case

Design and Analysis of a 3x3 Beam Splitter

A phase-only transmission function is designed using the iterative Fourier transform algorithm. As an additional step, a phase-only transmission is designed without any phase dislocations.

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Use Case

Design and Analysis of a Metalens

In this use case, a focusing metalens based on dielectric, cylindrical pillars is designed and analyzed in detail. The parameters used..

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Use Case

Design and Rigorous Analysis of Non-Paraxial Diffractive

The Fourier Modal Method (FMM) is applied for the rigorous evaluation of a non-paraxial diffractive beam splitter.

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Use Case

Design of 2D Non-Paraxial Beam-Splitting Metagrating

We design a 2D metagrating for beam splitting. The metagrating is constructed, analyzed, and further optimized in VirtualLab Fusion, especially in terms of the uniformity of the diffraction efficiencies.

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Use Case

Design of a CGH for Null-Testing

We considered a simplified system consisting of a point source, a CGH in the form of an ideal diffractive lens and an asphere...

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Use Case

Design of a Refractive Beam Shaper to Generate a Circular Top-Hat

With the user-friendly design tools in VirtualLab, a refractive beam shaper for shaping a fundamental Gaussian beam into top-hat profile is designed and analyzed.

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Use Case

Diffraction Efficiency Analysis for a Czerny-Turner Setup

A physical-optics-based simulation of Czerny-Turner setup, which consists of parabolic mirrors and blazed grating, is presented.

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Use Case

Diffraction Pattern Calculation from a Reflection-Type Diffractive Beam Splitter

This use case demonstrates how the diffracted pattern changes when the reflection-type beam splitter (designed for normal incidence) rotates.

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Use Case

Diffraction Patterns behind Different Apertures

With the advanced propagation technology in VirtualLab Fusion, we calculate the diffraction patterns for apertures with different shapes and study the property of diffraction.

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Use Case

Diffraction Property of a Passive Parity-Time Grating

We construct a passive parity-time grating and analyze its diffraction property with respect to selected grating parameters and the polarization of light.

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Use Case

Diffraction from the Aperture in a Microscopy System

It is demonstrated that the energy densities at the tube lens and at the image plane are influenced by the diffraction of the aperture in the microscopy system.

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Use Case

Double-Helix PSF for 3D Imaging Microscopy

It is demonstrated that the double helix PSF rotates when there is only a small defocus of the object point.

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Use Case

Effects of Mirror Coating on Pulse Characteristics

We demonstrate the effect of different mirror coatings on the characteristics of ultrashort pulses like peak value and pulse duration.

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Use Case

Export of Results of a Parameter Run

In this document, the export of data from a Parameter Run document is shown. A C# module is used to save the energy density distribution and ...

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Use Case

FTIR in a Cube Beam Splitter

A real beam splitter based on Frustrated Total Internal Reflection (FTIR) is investigated.

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Use Case

Femtosecond Pulse Propagation through Dispersive Seawater

The propagation of a 5-fs pulse through seawater is studied in VirtualLab Fusion. The broadening of the pulse and the change in its temporal profile due to dispersion of the material are shown.

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Use Case

Few-Mode Fiber Coupling under Atmospheric Turbulence

In this use case, we reproduce the experiments of Zheng et al. [Opt. Express 24 (2016)] to explore the atmospheric turbulence effects on the coupling efficiency between the free-space optical beam and few-mode fibers.

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Use Case

Fizeau Interferometer for Optical Testing

A Fizeau interferometer is set up with the help of non-sequential field tracing technology, and the interference fringes from several different test surfaces are shown.

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Use Case

Focus Investigation behind Aspherical Lens

A laser diode with asymmetric divergence and astigmatism is first collimated and then focused. Evolution of the field in the focal region is investigated in detail.

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Use Case

Focusing Electromagnetic Fields with Cascaded Circular Apertures

We demonstrate in VirtualLab Fusion the focusing of electromagnetic fields with properly designed apertures.

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Use Case

Focusing of Cylindrical Vector Beams by a High-NA Objective Lens

It is demonstrated that the focusing of cylindrical vector beams. The vectorial effects of radially and azimuthally beams are demonstrated.

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Use Case

Focusing of Femtosecond Pulse by Using a High-NA Off-Axis Parabolic Mirror

The focusing process of a 10-fs pulse by using a high-NA parabolic mirror is modeled and both the spatial and temporal behaviors are investigated...

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Use Case

Focusing of Gaussian-Laguerre Beam for STED Microscopy

It is demonstrated that the focusing of high order Gaussian-Laguerre beam generates donut-shaped PSF. The size of donut-shaped PSF can be adjusted by different high orders.

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Use Case

Focusing of an Ince-Gaussian Beam

This use case shows the focusing of an Ince-Gaussian mode through a GRIN medium representing a thermal lens.

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Use Case

Focussing through a Luneburg Lens with a Tilted Plane Wave

In this Use Case we demonstrate a propagation of a Plane Wave through a Luneburg lens.

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Use Case

Functional Coatings

This Use Case introduces the functional coatings for optical design, which allow for the generation of idealized coatings...

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Use Case

Gaussian Beam Focused by a Thermal Lens

This use case shows the variation of the focal length of the thermal lens, as well as the focus beam diameter when the input power changes [W. Koechner, Appl. Opt. 9, 2548–2553 (1970)]. This example is published in [H. Zhong, J. Opt. Soc. Am. A 35].

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Use Case

Generation of Optical Beams Carrying Orbital Angular Momentum (OAM)

We demonstrate the generation of optical beams carrying OAM by using spiral phase plates with different parameters.

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Use Case

Generation of Spatially Varying Polarization by Interference with Polarized Light

With a Mach-Zehnder interferometer setup with two rotatable polarizers, we demonstrate the generation of spatially varying polarization.

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Use Case

Generation of Vector Beam by a Sagnac-Like Interferometer

Following the idea of T. Wang et al., Appl. Phys. B 122:231 (2016), this use case demonstrates a Sagnac-interferometer scheme to generate vector beam.

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Use Case

Grating Component for General Optical Systems

This use case introduces the Grating Component in general optical setups, which allows for the inclusion of a wide range of different gratings.

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Use Case

Grating Stretcher for Ultrashort Pulses

We set up a pulse stretcher consisting of two diffractive gratings and investigate the pulse broadening effect induced by the interaction of the pulse with the gratings.

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Use Case

Grazing-Incidence Focusing Mirrors for X-Ray Beams

Kirkpatrick-Baez (KB) mirrors focus the grazing-incident X-ray field into a nanometer-scale spot. In this use case the modeling and evaluation of such KB mirror system is demonstrated.

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Use Case

Hartmann Wavefront Sensor for X-Ray Optics

In this use case we model the propagation of an X-ray field through a Hartmann wavefront sensor composed by an array of pinholes.

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Use Case

High-NA Beam Splitter Optimization with User-Defined Merit Functions

We demonstrates the usage of user-defined merit functions for the evaluation and optimization of order efficiencies of a diffractive high-NA beam splitter.

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Use Case

High-NA Focusing by Off-Axis Parabolic Mirror

In high-NA focusing situations, e.g. with parabolic mirror, it is demonstrated that input fields with different polarizations leads to different focal spots.

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Use Case

High-NA Pattern Generation by Combining Two Beam Splitter Elements

A two diffractive beam splitter system for high-NA pattern generation is designed with IFTA, and the system performance is investigated, especially with the non-paraxial splitter analyzed by using FMM.

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Use Case

Higher Modes in Laser Resonators

This demonstration shows the capabilities of VirtualLab Fusion to calculate higher resonator modes together with their corresponding Eigenvalues.

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Use Case

Imaging of Grating Patterns Positioned on Each Side of a Wafer

Its flexible detection concept then enables light recombination at the detector, allowing for automatic calculation of radiometric quantities...

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Use Case

Imaging of Sub-Wavelength Gratings by Using Vector Beam I

A high-NA microscope for imaging of sub-wavelength grating is build up, and the influences from illumination with linear, radial, and azimuthal polarizations is investigated.

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Use Case

Import Images into VirtualLab Fusion

This Use Cases demonstrates the import tool for any kind of picture into VirtualLab Fusion.

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Import Text Files into VirtualLab Fusion

This Use Case demonstrates the tool to import 2D, 1D or gridless data arrays from TXT-files into VirtualLab Fusion.

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Use Case

Import and Export of Chromatic Fields Sets

Chromatic fields set are standard documents to show a light distribution in VirtualLab Fusion. This use case demonstrates the options for import and export chromatic fields sets.

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Use Case

Ince Gaussian Modes

Ince-Gaussian Modes constitute an additional solution for the paraxial wave equation. This use case shows how to set up this kind of modes.

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Use Case

Including Lens Systems in the Optical Setup

In this document we present possible optical design workflows to transfer lens parameter data into VirtualLab Fusion.

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Use Case

Influence of the position of the stop in a lens system

It is demonstrated that the positions of the stop in a lens system have influence on the PSF, especially in the case of inclined illumination.

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Use Case

Interference Effects for Symmetrical SSTF-Setups

This Use Case demonstrates the characteristics of an ideal SSTF Setup including the effects of chirp - in VLF optical design software.

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Use Case

Interferometer with Laterally-Varying Beam Splitter Cube

We simulate a Mach–Zehnder interferometer using a beam splitter with independently adjustable inner and outer regions...

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Use Case

Introduction to the VirtualLab Fusion Optimization Package

The Optimization Package is a dedicated optimization tool designed to complement VirtualLab Fusion as a powerful optical system optimization software...

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Use Case

Investigation of Diffraction in Interferometer Caused by

A Michelson interferometer is used to analyze a podium sample with different wavelengths.

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Investigation of Diffraction in Interferometer Caused by Sharp Relief

We investigate diffraction caused by a sample with a rectangular height structure in a Michelson-Interferometer...

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Use Case

Investigation of Focus Shift due to Thermal Lensing

In this use case we demonstrate the change in the effective focal length caused by thermal lensing on a lens. The deformation of the geometry and the steady-state temperature distribution are calculated using Ansys Mechanical and are then imported into VirtualLab.

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Use Case

Investigation of Ghost Image Effects in Collimation System

The ghost image effect in a collimation lens system is investigated, by checking the reflections between uncoated surfaces.

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Use Case

Investigation of Idealized Vectorial Focusing Situation Using Debye-Wolf Integral

We use the Debye-Wolf integral calculator in VirtualLab Fusion for vectorial focal field investigation with different parameters.

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Use Case

Investigation of Lens Aberrations in a SLM-based Beam Shaping Setup

For a diffractive beam shaper used together with focusing lens, the influence from lens aberrations on the system performance is investigated.

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Use Case

Investigation of Propagated Light behind a Microlens Array

This use case investigates light behind a microlens array. Effects in the near field, focal plane and far field are shown and discussed.

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Use Case

Investigation of Sodium D Lines with a Fabry-Pérot Etalon

An optical metrology system with a silica spaced etalon is set up to measure the sodium D lines in the optical design software VirtualLab Fusion.

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Use Case

Laser Beam “Clean-Up” with Spatial Filter

A spatial filtering system with a pinhole is modeled in VirtualLab Fusion. We demonstrate how the opening of the pinhole influences the output beam quality.

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Use Case

Laser-Based Michelson Interferometer and Interference Fringe Exploration

A Michelson interferometer is set up with the help of non-sequential tracing technology in VirtualLab Fusion, and the interference fringes in different configurations are demonstrated.

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Use Case

Laterally-Varying Retarder

A function-based laterally varying retarder (LVR) is introduced into the optical path, producing a field with polarization that changes across the beam...

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Use Case

Lens with Modulated Refractive Index

In this Demo we modeled the light propagation through lenses with a modulated refractive index.

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Use Case

Light Propagation through Waveguide with In- & Outcoupling Surface Gratings

As one important issue for near-eye display (NED) design, the propagation of light through waveguide structure with tailored in- and outcoupling gratings can be easily modeled with the help of region and channel concept in VirtualLab Fusion.

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Use Case

Lightguide with 2D-Periodic Grating Structures (Diamond-Shaped) Based on Patent by Wave Optics

In this use case we model a lightguide system that uses 2D-periodic grating structures (diamond-shaped), according to the approach from Patent WO2018/178626 (by Wave Optics LTD).

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Use Case

Lightguide with 2D-periodic Grating Structures

In this demo a lightguide system is modeled, that uses 2D-periodic grating structures, which is based on the approach from Patent WO2018/178626.

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Use Case

Lightguide with Butterfly Eye-Pupil Expander based on Patent by Microsoft

This use case shows a lightguide system with a so-called “butterfly pupil expansion”, based on patent US9791703B1 by Microsoft.

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Use Case

Littrow Configuration for Blazed Gratings

Littrow configuration is the chosen denomination for a very commonly used way of orientating a blazed grating in monochromators, spectrometers ...

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Use Case

MTF Analysis in Complex Waveguide Devices

In the field of AR/MR, the accurate calculation of the achievable optical performance is one of the major tasks in optical design.

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Use Case

Mach-Zehnder Interferometer

We build up a Mach-Zehnder interferometer in VirtualLab Fusion and demonstrate how the tilt and shift of component affect the interference fringe.

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Use Case

Mach-Zehnder Interferometer with Small Obstruction

From an optical design and simulation perspective, propagating large fields with diffraction effects caused by tiny defects is highly challenging.

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Use Case

Microscopy System with Structured Illumination

It is demonstrated that the contrast of the structured illumination pattern is influenced by the polarization of the incident beam.

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Use Case

Mie Solution to Maxwell’s Equations for Scattering of an Electromagnetic Plane Wave

With the Mie solution for an electromagnetic plane wave in VirtualLab Fusion, we investigate the scattering effect of spherical particles with different radii and made of different materials.

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Use Case

Modeling and Analysis of Volume Holographic Gratings

This use case demonstrates how volume gratings can be modeled and analyzed in the optical design software VirtualLab Fusion.

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Use Case

Modeling and Analysis of Wedged Reversal Shearing Interferometry

We demonstrate how such an interferometer can be realized in VirtualLab Fusion...

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Use Case

Modeling and Design of Blazed Metagratings

We design and construct a blazed metagrating in VirtualLab Fusion using square nano pillars, analyze its polarization-dependent diffraction efficiency, and further optimize it.

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Use Case

Modeling of An Image Projection System Based on Panel-Type Display

An image projection system is set up using the panel-type source. The performance of the system is evaluated by observing the spot grid in both the spatial and angular domains.

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Use Case

Modeling of Bessel Beam Generation from Axicon with Round Tip

We model the generation of Bessel beams with axicon with round tip and investigate how the round tip may influence the Bessel beam evolution.

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Use Case

Modeling of Etalon with Planar or Curved Surfaces

With the non-sequential field tracing technique, the regarding interference patterns are modeled including vectorial effects.

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Use Case

Modeling of Foucault Knife-Edge Test

The Foucault knife-edge test is a well-known historical experiment to determine the characteristics of a given concave-shaped mirror. In this use case we model this test for a spherical and a parabolic mirror.

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Use Case

Modeling of Graded-Index (GRIN) Lens

In VirtualLab Fusion, we perform a fully physical-optics modeling of a Graded-index lens system, which includes the polarization crosstalk effects.

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Use Case

Modeling of Graded-Index (GRIN) Multimode Fiber

A fast approach for light propagation through a GRIN medium, which includes the polarization crosstalk effect, is implemented, and its validity and advantages are shown in comparison with a rigorous solver.

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Use Case

Modeling of Microlens Arrays with Different Lens Shapes

The imaging properties of microlens array with different lens shapes are investigated. Change of the focal spots with respect to aberration of input field is demonstrated.

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Use Case

Modeling of Multi-Pass White Cell

This Use Case demonstrates this capability in the context of CO₂ absorption measurement.

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Use Case

Modeling of Total Internal Reflection (TIR) Prism

We illustrate the modeling of interference and vignetting effects at a total internal reflection (TIR) prism. Dependent on the characteristics of the impinging light, these effects are introduced by the narrow gap between both prism parts.

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Use Case

Modeling of a Herriott-Cell

This use case shows a physical optics simulation of a Herriott Cell for gas spectroscopy, including a demonstration with CO2.

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Use Case

Modeling of a HoloLens 1 - Type Layout with Light Guide Component

This use case demonstrates the modeling of a device of a simple “HoloLens 1”-type layout with a Light Guide component capable of guiding light with a 32° × 18° FoV.

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Use Case

Modeling of a Metalens Singlet Based on Half-Wave Plate Model

Such metalenses are sensitive to the polarization of the input field and in this example we demonstrate the polarization behavior.

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Use Case

Modeling of a Space Plate by using a Multilayered Metasur

Metasurfaces allow to imitate a propagation in free space much longer than the actual thickness of the plate...

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Use Case

Modeling of an Array of Vertical Cavity Surface Emitting Laser (VCSEL) Diodes

This document demonstrates how a VCSEL array source can be modeled in VirtualLab Fusion.

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Use Case

Modeling of the Talbot Effect

We demonstrate the modeling of the Talbot effect, a well-known near-field diffraction effect from periodic structures such as gratings.

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Use Case

Modeling the Effects introduced by the Real Structure of a Diffractive Lens in a Hybrid Eyepiece

A hybrid eyepiece with a real diffractive lens surface is imported from Zemax OpticStudio® and analyzed further in VirtualLab Fusion.

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Use Case

Moiré Fringes Generation

In this Demo we seek to model the Moiré pattern in an optical setup.

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Use Case

Observation of Gouy Phase Shift in a Mach-Zehnder Interferometer

Gouy phase shift, which is a p phase term, can be observed by a Mach-Zehnder interferometer. The interference along optical axis is constructive before focus, while destructive behind focus.

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Use Case

Observation of Vortex Array Laser Beam Generation from Ince-Gaussian Beam

This document illustrates the generation of vortex-array laser beams using an Ince-Gaussian source.

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Use Case

Observation of the Poisson Spot

The vital role of diffraction in the Poisson-spot experiment provided proof of the wavelike nature of light.

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Use Case

Optical System for Inspection of Micro-Structured Wafer

A complete wafer inspection system including high-NA focusing effect and light interaction with microstructures is modeled, and the formation of image is demonstrated.

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Use Case

Optimal Working Distance for Coupling Light into Single-Mode Fibers

In this example, we select one commercially available lens and show how to find the optimal working distance to obtain maximum fiber coupling efficiency by using field tracing.

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Use Case

Optimization of Anti-Reflective Moth-Eye Structures

We investigate two strategies of an equidistant gridded moth-eye structure, evaluating their efficancy and outcomes in optimizing AR properties.

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Use Case

Optimization of Grating Incoupler for Lightguides/Waveguides

Lightguide or waveguide-based systems have proven to be a good approach for many AR/VR applications. To achieve high performance...

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Use Case

Optimization of Lightguide Coupling Grating for Single Incidence Direction

We demonstrate the design workflow for optimizing a rectangular grating for one specific incidence direction to obtain maximum efficiency for a specific diffraction order.

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Use Case

Optimization of Lightguide with Continuously Modulated

This use case demonstrates how to optimize a lightguide with continuously varying fill factor of the gratings in the EPE and outcoupler regions to achieve adequate lateral uniformity in the eyebox.

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Use Case

Optimizing Waveguide Outcoupling Gratings for Uniform Multiple Channels

To ensure uniform multiple waveguide output channels, the outcoupling gratings are optimized, with their efficiencies calculated by the rigorous Fourier modal method.

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Use Case

Parametric Optimization and Tolerance Analysis of Slanted Gratings

With the Fourier modal method (FMM) as the kernel on which parametric optimization a slanted grating is designed to achieve high diffraction efficiency.

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Use Case

Parametric Optimization of Fiber Coupling Lenses

With the parametric optimization in VirtualLab Fusion, the design of a fiber coupling lens with conical surface into a single-mode fiber is presented.

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Use Case

Performance Analysis of Laser Scanning System

A scanning system consisting a dual-axis galvanometer and an aspherial focusing lens is modeled, with the rotation of the mirrors taken into simulation as in the practical case.

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Use Case

Performance Evaluation of an F-Theta Scanning Lens

With the scanning source in VirtualLab Fusion, we analyze the performance of an F-Theta lens, by measuring the focal spot position deviation and the spot size for different scan angles.

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Pinhole Modeling in a Low-Fresnel-Number System

With the flexible Fourier transform settings in VirtualLab Fusion, we model the diffraction effect from surface apertures and pinholes in a low-Fresnel-number system.

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Polarization Conversion in Uniaxial Crystals

The conversion of polarization of linearly polarized light in a calcite crystal is demonstrated in VirtualLab Fusion.

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Polarization-Dependent Binary Resonant Gratings

We construct a binary grating with sub-wavelength structure following the principle of form birefringence and demonstrate its polarization-dependent properties.

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Position and Orientation of Optical Setup Elements

This use case demonstrate how to configure the position and orientation of optical elements within optical setups.

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Principle of Stimulated Emission Depletion (STED) Microscopy

STED Microscopy describes a commonly used technique to achieve super resolution in biological applications.

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Programmable Component for Free-Space Propagation

In this programming example, we present some functions which were used in the Classic Field Tracing engine to propagate an electromagnetic field that was represented in an equidistantly sampled form.

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Pulse Broadening in Dispersive Media

We investigate the relationship between the broadening of an ultrashort pulse and the dispersion of given materials that the pulse propagates through.

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Pulse Focusing with High-NA Lens

We investigate the effects of subjecting an ultrashort pulse to propagation through a lens with high numerical aperture, in terms of its spatial, as well as of its temporal, profile.

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Pulse Front Tilt in SSTF – Setups

This Use Case demonstrates the characteristics of an ideal SSTF Setup including the effects of chirp.

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Reflecting Microscope System with very high Numerical Aperture

This use case demonstrates the modeling a compact reflective microscope system with a very high numerical aperture of 0.99 using VirtualLab Fusion’s fast physical optics technology. Further the result is compared to a reference.

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Reflection at a Retroreflector with Rough Surfaces

Simulation of a retroreflector with rough surfaces using optical design software VirtualLab Fusion.

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Reflection at a Rough Surface

We demonstrate how a random rough surface can be modeled and analyzed in the optical design software VirtualLab Fusion.

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Resolving Sodium Doublet by Using a Czerny-Turner Setup

A physical-optics-based simulation of Czerny-Turner setup consisting of parabolic mirrors and blazed grating for Sodium doublet examination, is investigated.

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Resonant Grating Coupler

We investigate the properties of the resonant grating coupler and how the efficiency of different reflective diffraction orders varies...

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Resonant Photonic Lattices

We simulate a photonic lattice system with the in-build FMM solver of VirtualLab Fusion.

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Rigorous Analysis and Design of Anti-Reflective Moth-Eye Structures

With the Fourier modal method and the parametric optimization in VirtualLab Fusion, we demonstrate the analysis and design of anti-reflective moth-eye structures.

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Rigorous Analysis of Nanopillar Metasurface Building Block

With the rigorous Fourier modal method (FMM), we analyze the effects, especially the phase modulation, of nanopillar structures with varying diameters - the building blocks of metalenses.

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Rigorous Analysis of Resonant Waveguide Gratings

We apply the Fourier modal method (FMM / RCWA) within VirtualLab Fusion to analyze resonant waveguide gratings rigorously and demonstrate how to check the resonant effects with focused Gaussian beams.

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Robustness Optimization of a Slanted Grating

This use case demonstrates a robustness optimization for a slanted grating that has a slightly varying fill factor.

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Sagnac Interferometer

In this Demo we seek to simulate the interference pattern in a Sagnac interferometer setup.

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Schmidt-Cassegrain Telescope

The simulation of a Schmidt-Cassegrain telescope with VirtualLab Fusion. It also investigates the aberration effects in a sample system.

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Shaping of White Light by Using Prism / Grating / Mirror Cells Arrays

Design of different types of cells arrays, which are used behind white light LED for generating customized patterns, are presented.

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Simulation of Basic Mirau Interferometer

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Simulation of Conical Refraction as a Tool for Polarizati

This use case demonstrates the application of conical refraction as a tool for polarization metrology.

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Simulation of Laser Beam in Focal Region of High-NA Asphere

When a linearly polarized beam is focused by a high-NA lens, the focal spot shows asymmetry due to the relatively strong Ez component.

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Simulation of Light Diffraction at Pixels of a Spatial Light Modulator

When SLMs are often employed as programmable diffractive optical elements, the influence from the pixel gaps on the system performance is investigated.

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Simulation of Lightguide with 1D-1D Pupil Expander and Real Gratings

The investigation of the influence of real gratings on the efficiency and uniformity of a lightguide are of essential importance. This use case shows an example with a slanted grating as incoupler and binary surface relief grating as EPE and outcoupler.

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Simulation of Multilayer Birefringent Reflective Polarizer with VirtualLab Fusion

In this use case, the relationship between the number of alternate birefringent layers and the Bragg reflection condition is explored with VirtualLab Fusion. The variation of the reflectance efficiency with different wavelengths and incident angles is further investigated.

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Simulation of Reflective Pyramid Wavefront Sensor

This use case shows the modeling a reflective pyramid wavefront sensor by using VirtualLab Fusion’s Field Tracing technology.

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Simulation of a Shack-Hartmann Sensor

The working principle of a Shack-Hartmann sensor is shown using plane waves and spherical waves with different values of the numerical aperture. The sensor itself consists of a double-convex microlens array.

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Use Case

Simulation of a Test Image in an AR Waveguide Using Distributed Computing

A waveguide combiner is illuminated with a test image that consists of more than 10,000 pixels.

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Use Case

Single Grating Interferometer for X-Ray Imaging

Three types of gratings (modeled by phase-only transmissions) are employed in a single grating interferometer for the x-ray...

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Use Case

Single-Molecule Imaging by High-NA Fourier Microscope

We model a complete high-NA Fourier microscopy system for single-molecule imaging. Exemplarily, we show the effect of e.g. Fresnel losses at interfaces, diffraction from apertures, and compare the simulation results to a reference.

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Use Case

Statistical Moth-Eye Structure

This use case demonstrates how to model the moth-eye structure by a statistical distribution of cones. For this purpose, the Random Cone Interface is used.

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Use Case

Stress-induced Birefringence in Laser Crystals

The stress-induced birefringence in a YAG crystal is investigated, by examining the change of output field with respect to the strength of stresses.

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Use Case

Stretching or Compression of Ultrashort Pulses with Highly Efficient Transmission Gratings

We demonstrate, according to T. Clausnitzer et al., how to build up a pulse stretching or compression system with two transmission gratings. Especially, we analyze the polarization dependency of such systems.

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Use Case

Talbot Images of A Conical Phase Mask

A phase mask with a layer of cones is modeled rigorously in VirtualLab Fusion. Different Talbot images are detected, with the pillar pattern reproduced in the primary image plane and the hole pattern in the secondary.

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Thin Element Approximation (TEA) vs. Fourier Modal Method (FMM) for Grating Modeling

Two commonly used, but very different algorithms for the analysis of diffraction efficiencies of gratings are investigated: TEA and FMM.

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Tight Focusing Through a Stratified Medium

It is demonstrated that the focal spot is aberrated for tight focusing through a coverslip, which is a stratified medium.

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Tight Focusing by a High-NA Immersion Microscope

It is demonstrated that the PSF is distorted behind the coverslip of an immersion microscope.

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Tight Focusing of Variously Polarized Beams by an Idealized Aplanatic Lens

VirtualLab Fusion with its idealized lens functions provides an easy way to analyze the focusing effects of polarized vectorial fields...

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Use Case

Tolerance Analysis of a Fiber Coupling Setup

In a fiber coupling optical setup, the coupling efficiency is analyzed with respect to tolerance factors like the shift of fiber end position and the tilt of lens.

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Tolerancing with Parameter Variations of Different Random Distributions

In this use case we demonstrate a programmable Parameter Run that allows the user to employ different random distributions for the purpose of tolerancing.

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Use Case

Tolerancing with Random Distributions

This Use Case presents the different forms of random distributions that could be used to perform a tolerance analysis on a system.

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Use Case

Ultra-Sparse Dielectric Nano-Wire Grid Polarizer

The polarization-dependent properties of ultra-sparse dielectric nanowire grids are analyzed by using the Fourier modal method (FMM, also known as RCWA).

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Use Case

Variable Angle Spectroscopic Ellipsometry (VASE) Analysis of a SiO2-Coating

Due to its high sensitivity to small changes in optical parameters, variable angle spectroscopic ellipsometry (VASE) is a commonly applied technology...

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Use Case

Vector Beam Generation with a SLM and a Common-Path Interferometer

An interferometric setup is built up with SLM, apertures, quarter-wave plates, and grating, in a 4f lens system. Using this setup, we demonstrate the generation of cylindrical vector beams.

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Use Case

White-Light Michelson Interferometer

A Michelson interferometer with a Xenon lamp source is modeled with the spectral property, i.e. limited coherence length, of the source fully considered.

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Use Case

Working Principle of Confocal Scanning Microscopes

We built a confocal scanning microscope in VirtualLab Fusion and used a metallic grating as the test object to demonstrate the working principle of the microscope.

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Use Case

Working Principle of Optical Coherence Tomography

With a low-coherence Xenon lamp source, a Michelson interferometer is built up to demonstrate the working principle of optical coherence tomography (OCT).

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Use Case

Young’s Interference Experiment

In VirtualLab Fusion, we reproduce the famous Young’s interference experiment, and checked the influence from slit width, slit distance, as well as the effect of extended source.

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