LightTrans

What’s new?

Slanted Gratings

[October 10, 2019]
We show, in accordance to existing examples from literature, how to model slanted gratings with different geometries with the Fourier modal method (FMM) in VirtualLab Fusion.
[October 10, 2019]

Slanted gratings have been found to be of advantage in lightguide-based display systems for AR/MR applications. Such gratings often have periods that are comparable to the wavelength. Therefore, rigorous computational methods must be used to evaluate their performance. We show, in accordance with existing examples from literature, how to model slanted gratings with different geometries using the Fourier modal method (FMM) in VirtualLab Fusion. Additionally, customized slanted gratings can be designed with the help of parametric optimization.

Read more

Large-Angle Dot Projector

[September 17, 2019]
In VirtualLab Fusion, by connecting different field solvers, we demonstrate how a dot project works.
[September 17, 2019]

A large-angle dot projector is the key optical component in Apple’s Face ID, which casts a structured dot pattern onto the face so as to create a 3D facial map. The dot projection system often employs an array of VCSEL units. Light from the VCSEL array is first collimated by a lens system, and then replicated by a two-dimensional grating into a large angular range. Simulation of such systems would require an appropriate model of the VCSEL source, a dependable handling of the lens system, and a rigorous method for gratings with relatively small periods. In VirtualLab Fusion, this connection of different field solvers is par for the course; we use this ability below in a demonstration of how a dot projector works.

Read more

Tightly Focused Light

[September 02, 2019]
We demonstrate, using the software VirtualLab Fusion, how different polarization states (e.g. radial) and aperture shapes (e.g. annular) may influence the electromagnetic field in the focal region.
[September 02, 2019]

How to focus light into an ever-smaller spot is an ever-present question in the optics community. Various approaches with the aim to focus light tightly have been developed, particularly of late. Investigation of light focusing under a high-NA configuration often requires fully vectorial electromagnetic simulation techniques. We demonstrate, using the software VirtualLab Fusion, how different polarization states (e.g. radial) and aperture shapes (e.g. annular) may influence the electromagnetic field in the focal region. Such analyzes can be done either with idealized lenses, or with real lenses with explicit structure and material information.

Read more

Customize VirtualLab Fusion to Fit Your Needs!

[August 23, 2019]
We would like to provide full flexibility in VirtualLab Fusion so as to be able to meet the specific needs of the wide range of modeling or design tasks that can be tackled with the software. This versatility can be realized with various types of programmable elements in VirtualLab, from source to detectors, through components, and many more.
[August 23, 2019]

We would like to provide full flexibility in VirtualLab Fusion so as to be able to meet the specific needs of the wide range of modeling or design tasks that can be tackled with the software. This versatility can be realized with various types of programmable elements in VirtualLab Fusion, from source to detectors, through components, and many more. Here we demonstrate two examples: a customized analyzer and a module. In the first example, a programmable grating analyzer is used to read and display specific grating diffraction properties for further analysis; the second example shows how to control an IFTA design via a customized module, avoiding the graphical user interface of the software.

Read more

Hybrid Lens Simulation

[August 09, 2019]
We analyze in particular how to exploit the dispersion property of diffractive optics to correct chromatic aberration. Since the Summer Release 2019, VirtualLab Fusion supports the import of Binary 2 surfaces from Zemax OpticStudio®, a feature that facilitates a convenient workflow for the analysis of such hybrid lens systems.
[August 09, 2019]

Hybrid optical lenses with both refractive and diffractive surfaces have already proved useful in many applications. As an example, we showcase a hybrid eyepiece with just such a construction, i.e. it consists of both refractive and diffractive surfaces. We analyze in particular how to exploit the dispersion property of diffractive optics to correct chromatic aberration. Since the Summer Release 2019, VirtualLab Fusion supports the import of Binary 2 surfaces from Zemax OpticStudio®, a feature that facilitates a convenient workflow for the analysis of such hybrid lens systems.

Read more

EOS Diffractive Optics 2019 – Program Overview

[August 08, 2019]
Register now for the conference. Early bird registration until 31 July 2019. The conference programm is now online.
[August 08, 2019]

We are happy to announce that EOS has published the program of the conference. Take the chance and meet experts to talk about their latest research results in the field of photonics.

Jena, Germany | 16 – 19 September

Read more

Cross-platform Optical Modeling and Design

[August 04, 2019]
The physical optics software VirtualLab Fusion is constructed as a platform to combine different in-built and customized field solvers to enable fast physical-optics simulation and design with ray tracing naturally embedded. This multi-solver concept is complemented by the possibility to use a cross-platform approach, where VirtualLab Fusion is accessed externally.
[August 04, 2019]

The physical optics software VirtualLab Fusion is constructed as a platform to combine different in-built and customized field solvers to enable fast physical-optics simulation and design with ray tracing naturally embedded. This multi-solver concept is complemented by the possibility to use a cross-platform approach, where VirtualLab Fusion is accessed externally. In two examples we demonstrate an interaction with Matlab and Python. In this way, tools and algorithms from other programs or programming languages can be used to extend the options for simulation, optimization, design and post-processing.

Read more

Binary Grating Design Workflow

[July 22, 2019]
VirtualLab Fusion with its inbuilt Fourier modal method and different optimization algorithms, provides a complete user-friendly design workflow for binary gratings.
[July 22, 2019]

Binary gratings, with either straight or slanted side walls, have turned out to be the key components in many optical applications. Thanks to the advances in e.g. nanoimprint technology, the fabrication of this type of gratings with small, critical dimensions has become feasible. VirtualLab Fusion, with its inbuilt Fourier modal method (FMM, also known as RCWA) and different optimization algorithms, provides a complete user-friendly design workflow for binary gratings that also includes the subsequent analysis of fabrication errors, like rounded-edge effects.

Read more

Contact & Trial

LightTrans GmbH

Phone +49.3641.53129-50

info (at) lighttrans.com

 

VirtualLab Fusion

Get free trial version

Get an offer