Acoustic field structure simulation in quasi-collinear acousto-optic cells with ultrasound beam reflection

被引：21
作者：
Mantsevich, S. N. [1 ]
Molchanov, V. Ya. [2 ]
Yushkov, K. B. [2 ]
Khorkin, V. S. [1 ]
Kupreychik, M. I. [1 ]
机构：
[1] Moscow MV Lomonosov State Univ, Dept Phys, GSP-2, Moscow 119991, Russia
[2] Natl Univ Sci & Technol MISIS, Leninsky Prospect 4, Moscow 119049, Russia
来源：
ULTRASONICS | 2017年 / 78卷
基金：
俄罗斯基础研究基金会;
关键词：
Media anisotropy; Paratellurite; Acoustic beam structure; Ultrasound beam reflection; Angular spectrum; Acousto-optic interaction; Quasi-collinear diffraction geometry; PROGRAMMABLE DISPERSIVE FILTER; WAVE PROPAGATION; PARATELLURITE; DIFFRACTION; ANISOTROPY; TEO2; FIGURE; MERIT;
D O I：
10.1016/j.ultras.2017.03.018
中图分类号：
O42 [声学];
学科分类号：
070206 ; 082403 ;
摘要：
Ultrasound wave reflection from one of the crystal faces is the convenient way to arouse the acoustic beam with a desired propagation direction inacousto-optic cells with collinear and quasi-collinear interaction geometries. The reflection process effects on the ultrasound field amplitude and phase structure. The method to simulate the reflected finite ultrasound beam structure in the case of acoustically anisotropic media is presented in this paper. The investigation is carried on the example of two quasi-collinear acousto-optic cells fabricated on the base of tellurium dioxide crystal. The cells have special geometry that allows to obtain extremely long acousto-optic interaction length and to achieve unprecedented spectral resolution. The influence of reflection process in the acousto-optic diffraction characteristics was also examined. (C) 2017 Elsevier B.V. All rights reserved.
引用
收藏
页码：175 / 184
页数：10
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