Open AccessОсобенности спектральных характеристик узкополосных светофильтров при наклонном падении пучка излучения
Author(s) -
Van Bau Nguyen,
L. A. Gubanova,
Dinhbao Bui
Publication year - 2019
Publication title -
pisʹma v žurnal tehničeskoj fiziki
Language(s) - English
Resource type - Journals
eISSN - 1726-7471
pISSN - 0320-0116
DOI - 10.21883/pjtf.2019.09.47704.17620
Subject(s) - optics , divergence (linguistics) , beam divergence , gaussian , physics , total internal reflection , beam (structure) , limit (mathematics) , spectral power distribution , reflection (computer programming) , beam diameter , mathematics , laser beams , laser , mathematical analysis , philosophy , linguistics , quantum mechanics , computer science , programming language
Spectral characteristics of narrow-band optical filters based on frustrated total internal reflection is analyzed considering the Gaussian distribution of angle of incidence. The spectral characteristics were calculated with and without incident beam divergence. We showed that when the spectral characteristics of these optical filters is measured, the incident beam divergence should not exceed a certain limit value, which is a few angular minutes.