Open AccessLimits of applicability of the direct ray approximation in modeling optical properties of liquid-crystal diffraction gratings
Author(s) -
Dmitry D. Yakovlev,
D. A. Yakovlev
Publication year - 2020
Publication title -
kompʹûternaâ optika
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.491
H-Index - 29
eISSN - 2412-6179
pISSN - 0134-2452
DOI - 10.18287/2412-6179-co-562
Subject(s) - birefringence , aperiodic graph , optics , diffraction , materials science , liquid crystal , modulation (music) , spatial frequency , orientation (vector space) , optical axis , physics , mathematics , geometry , acoustics , combinatorics , lens (geology)
Using computer modeling, we estimate limits of applicability of the direct ray approximation in modeling the optical properties of liquid-crystal diffraction gratings with continuous spatial modulation of the local optic axis orientation in a liquid crystal layer. The data presented concerning the influence of the spatial frequency and character of modulation of the local optic axis, as well as the magnitude of birefringence of the medium, on the accuracy of the results obtained in this approximation are also useful in considering birefringent layers with an aperiodic variation of the local optic axis.