Advanced Configuration of Slanted Gratings

Abstract

VirtualLab Fusion can be used to analyze arbitrary types of gratings. Due to the raising importance of gratings which exhibit slanted structures within complex optical setups also slanted gratings are available. The slanted grating is realized by a special optical medium, where the geometry can be defined, versatilely. Moreover, several advanced specification options are available, e.g. adding a full and partially coating layer.

In this tutorial the available options for configuration are explained and their influence on the geometry of the grating are discussed.

VirtualLab Fusion Configuration

  • VirtualLab Fusion VirtualLab Fusion
  • Grating Package Grating Package

Are you interested in further reading?

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.

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).

Tutorial

Configuration of Grating Structures by Using Special Media

In the VirtualLab’s Grating Software Package grating structures can be configured by using a stack.