This article is cited in 3 papers

Spectral characteristics of narrow-band optical filters at oblique incidence of a light beam

V. B. Nguyen^a, L. A. Gubanova^b, D. B. Bui<sup>a

a</sup> Le Quy Don Technical University, Hanoi, Vietnam
^b St. Petersburg National Research University of Information Technologies, Mechanics and Optics

Abstract: 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.

Received: 04.12.2018
Revised: 04.12.2018
Accepted: 08.02.2019

DOI: 10.21883/PJTF.2019.09.47704.17620

 English version: Technical Physics Letters, 2019, 45:5, 430–432

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