Investigation of Sodium D Lines with a Fabry-Pérot Etalon
Abstract
Fabry-Pérot etalons are widely used in laser resonators and spectroscopy for sensitive wavelength filtering. Typically, they are composed of two high-reflective (HR) coated surfaces with air or glass in between. In this example, an optical metrology system with a silica spaced etalon is set up to measure the sodium D lines in VirtualLab Fusion. With our seamless non-sequential single-platform interoperability of modeling techniques, the interference due to multiple reflections in the etalon is fully considered, and the influence from the reflectance of the applied coatings on the fringe contrast is investigated.
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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.
Tutorial
Stratified Media Component
This tutorial introduces the Stratified Media Component and gives an overview of its options, settings, and electromagnetic field solver.