Modes of wide-aperture acousto-optic diffraction in a uniaxial birefringent crystal

被引：6

作者：

Machikhin, Alexander ^{[1
]}

Gorevoy, Alexey ^{[1
]}

Batshev, Vladislav ^{[1
,2
]}

Pozhar, Vitold ^{[1
]}

机构：

[1] Russian Acad Sci, Sci & Technol Ctr Unique Instrumentat, Lab Acoustoopt Spect, Moscow, Russia

[2] Bauman Moscow State Tech Univ, Dept Laser & Opt Elect Devices, Moscow, Russia

来源：

JOURNAL OF OPTICS | 2021年 / 23卷 / 12期

基金：

俄罗斯科学基金会;

关键词：

spectral imaging; acousto-optic interaction; Bragg diffraction; uniaxial birefringent crystals; LIGHT-DIFFRACTION; FILTER;

D O I：

10.1088/2040-8986/ac3368

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Acousto-optic (AO) anisotropic interaction in uniaxial birefringent crystals is a widespread and versatile approach to tunable spectral filtration of light. Its principal constraints are limited values of spectral and angular bandwidth restricting the light transmission and imaging performance of AO filters. A way to overcome these drawbacks is simultaneous Bragg diffraction of two or more light beams. In this paper, we discuss and compare the main features of four available modes of anisotropic wide-aperture AO interactions in uniaxial birefringent crystals. We calculate the angular aperture, spectral resolution and other parameters and estimate the spectral image quality features related to each one. Theoretical consideration and computational modeling are carried out for tellurium dioxide (TeO2)-the main AO crystal. Derived results are important for the development of AO imaging devices, particularly multi-channel AO tunable filters.

引用

页数：9

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