Details

Autor(en) / Beteiligte

• Linß, Sebastian
• Zeitner, Uwe D

Titel

Design of computer-generated holograms based on semi-rigorous simulations of sub-wavelength structures

Ist Teil von

• Optics express, 2023-03, Vol.31 (7), p.11089-11101

Ort / Verlag

United States

Erscheinungsjahr

2023

Quelle

Free E-Journal (出版社公開部分のみ）

Beschreibungen/Notizen

• Conventional design methods for computer-generated holograms often rely on the scalar diffraction theory because the calculation effort of rigorous simulations is too high. But for sub-wavelength lateral feature sizes or large deflection angles, the performance of realized elements will show distinct deviations from the expected scalar behavior. We propose a new design method that overcomes this issue by incorporating high-speed semi-rigorous simulation techniques that allow the modeling of light propagation at an accuracy close to the rigorous methods. This includes an approach to solve the inverse problem of calculating a geometric structure that is able to form a certain physical field distribution.