Photothermal Transformation of Bessel Light Beams in Periodically Polarized Nonlinear Crystals

被引：0
|
作者：
Mityurich, G. S. [1 ]
Lebedeva, E., V [2 ]
Khilo, P. A. [3 ]
Mityurich, D. G. [4 ]
Serdyukov, A. N. [1 ]
机构：
[1] Francisk Skorina Gomel State Univ, Gomel 246019, BELARUS
[2] Belarusian Trade Econ Univ Consumer Cooperat, Gomel 246029, BELARUS
[3] Sukhoi State Tech Univ Gomel, Gomel 246746, BELARUS
[4] State Prod Assoc Belorusneft BelNIPIneft, Gomel 246003, BELARUS
来源：
CRYSTALLOGRAPHY REPORTS | 2020年 / 65卷 / 03期
关键词：
GENERATION; SPECTROSCOPY;
D O I：
10.1134/S1063774520030219
中图分类号：
O7 [晶体学];
学科分类号：
0702 ; 070205 ; 0703 ; 080501 ;
摘要：
A mechanism of the formation of a photodeflection response in a periodically polarized nonlinear crystal illuminated by a Bessel light beam (BLB) is considered. The thermal-field distribution is found, and the exact solution of the system of heat-conduction equations is obtained using the Fourier-Bessel and Laplace integral transforms for a three-layer system consisting of a nonlinear crystal, a substrate, and environment. A method for controlling the amplitude of the photodeflection signal is proposed based on the application of axicons with an adjustable taper angle or optical schemes providing a change in the conicity of BLBs.
引用
收藏
页码：473 / 478
页数：6
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