Open AccessМетод измерения периодов волноводных дифракционных оптических элементов
Author(s) -
С.С. Копенкин,
В.В. Кесаев,
А.Н. Путилин
Publication year - 2021
Publication title -
pisʹma v žurnal tehničeskoj fiziki
Language(s) - English
Resource type - Journals
eISSN - 1726-7471
pISSN - 0320-0116
DOI - 10.21883/pjtf.2021.23.51785.18953
Subject(s) - optics , waveguide , diffraction , simple (philosophy) , substrate (aquarium) , contrast (vision) , materials science , physics , computer science , geology , philosophy , oceanography , epistemology
An original method of the periods of waveguide diffractive optical elements (DOEs) measuring is proposed. In contrast to standard techniques, the proposed method provides measurements of waveguide gratings periods while the diffracted light is propagating in the substrate material. The method is simple and has a small error.