LightTrans

Upcoming Webinars

Below you may find a list of our upcoming webinars.

PhotonicNet Webinar: Flat Optics – about Freeform, Fresnel, Diffractive and Meta Lenses

In this online seminar we invite you to join us on a journey through the concepts, prospects, challenges, and myths of the different versions of flat components, with an emphasis on lenses.

New Features in VirtualLab Fusion for Fiber Optics

VirtualLab Fusion comes with new features for the modeling and design of systems for fiber optics. Based on linearly polarized (LP) modes and Gaussian-Laguerre solver techniques, we present several use cases.

New Features in VirtualLab Fusion for Fiber Optics

3 February 2021
10:00 – 11:00 and 18:00 – 19:00 (CET)
Register here

Previous Webinars

Below you may find a list of our webinars which have already taken place. Fill out the form on the webinar page and get access to our webinar for watching it on demand.

Diffractive Lenses: Concept, Modeling, Design, and Fabrication Data

In the webinar we introduce the concept of diffractive lens and generalize it to the usage of digital holographic surfaces. We briefly compare it with the metalens and Fresnel-type lens approaches. The modeling theory of diffractive lenses is discussed and its implementation and usage in VirtualLab Fusion demonstrated.

Diffractive Lenses: Concept, Modeling, Design, and Fabrication Data

Smooth, often spherical, surfaces between homogeneous media dominate lens design. The introduction of aspherical and freeform surfaces has added design freedom to obtain compact lens systems with improved quality and new functions. According to the Fresnel equations, surfaces typically do not add a phase variation to the incident light. Diffractive surfaces introduce the freedom to add an extra phase variation onto the incident light. Interest in how to use this extra design freedom best has gained momentum in recent years, aiming at more compact systems and better performance. The nature of the diffractive structure allows for special functionalities like multiple foci, but also leads to some challenges, like a strong wavelength dependency.

Gratings as a Part of Optical Systems

The construction of optical systems combining diffraction gratings and lenses and other smooth surfaces is a common occurrence. We have selected three examples to illustrate in the webinar the potential of VirtualLab Fusion in this field.

Gratings as a Part of Optical Systems

The construction of optical systems combining diffraction gratings and lenses and other smooth surfaces is a common occurrence, across many applications like spectroscopy, in microscopy using the grating as a test object, or in AR & MR glasses. This is not reflected in the field of simulation: it is rare, even today, to find software which can convincingly tackle the modeling of such systems. The reason for this is the vast difference in the structural dimensions of the two types of components, which means drastically different algorithms are needed for each of them.

Lightguides for Mixed Reality Glasses: Design Techniques and Challenges

The use of lightguides with diffraction gratings has become of great interest in the development of augmented reality and mixed reality glasses. This webinar will introduce you to a suitable physical-optics modeling technology and demonstrate it in the software VirtualLab Fusion.

Lightguides for Mixed Reality Glasses: Design Techniques and Challenges

The use of lightguides with diffraction gratings has become of great interest in the development of augmented reality and mixed reality glasses. The propagation of light through such lightguides requires simulation techniques beyond ray tracing. It must be possible to include physical-optics effects in a controllable manner to meet the needs in modeling and design. This webinar will introduce you to a suitable physical-optics modeling technology and demonstrate it in the software VirtualLab Fusion.

Simulation of Interferometric Setups with VirtualLab Fusion

In this webinar we will demonstrate the simulation of a series of interferometric setups in the fast physical optics modeling and design software VirtualLab Fusion, and illustrate some of the features which make VirtualLab a particularly user-friendly and efficient simulation tool for a wide range of interferometers.

Simulation of Interferometric Setups with VirtualLab Fusion

Interferometry as a discipline proves useful in a wide range of applications, and interferometric setups can just as easily be found in the laboratories of educational institutions for the demonstration of fundamental physical effects to budding students, as in cutting-edge industrial systems for many different purposes, like surface quality characterization and sensing, among others. And that is not to mention the medical and biological fields, where interferometry forms the basis for multiple non-invasive diagnostic tools.

Modeling and Design of Metagratings

VirtualLab Fusion provides a seamless workflow for design and analyzing metagratings – from the unit cell (single pillar) selection, the composition of metagratings by using pillars with varying parameters, and the parametric optimization of the metagrating structure for further performance improvement. All the steps can be done in the unified simulation platform VirtualLab Fusion, and, in this webinar, we will demonstrate the workflow above at selected examples.

Modeling and Design of Metagratings

Metagratings and more general metasurfaces are shown to be potentially powerful devices for various applications. In comparison to the traditional diffractive gratings, metagratings are known for maintaining a high diffraction efficiency in non-paraxial situations. Polarization-insensitive designs are possible with an appropriate selection of the types of nanopillars as the unit cells for the metagratings.

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