Diffractive Lens Component
Abstract
Nowadays, diffractive lenses are used in various applications of modern optics. Micro-structured surfaces are used to replace bulky optical elements, benefitting from reduced size and weight in comparison with traditional lenses. In the fast physical optics software VirtualLab Fusion, such structures can be modeled either in an idealized form, with pre-defined orders and efficiencies, or more realistically, including the accurate analysis of the actual micro-structured surfaces. In this document, VirtualLab Fusion’s diffractive lens component is introduced together with the available options and applied modeling methods.
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Technical Whitepaper
Local Linear Grating Approximation (LLGA)
The LLGA solver assumes local plane wave and local linear grating interactions (x domain), using either the FMM/RCWA or TEA for the grating analysis.
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