Analysis and Imaging of Internal Inhomogeneities in Transparent Optical Materials by Three-Dimensional Laser Heterodyne Microprobing

被引：2
|
作者：
Steinberg I.S. [1 ]
Tverdokhleb P.E. [1 ,2 ,3 ]
Belikov A.Y. [1 ]
机构：
[1] Institute of Automation and Electrometry, Siberian Branch, Russian Academy of Sciences, pr. Akademika Koptyuga 1, Novosibirsk
[2] Novosibirsk State University, ul. Pirogova 2, Novosibirsk
[3] Novosibirsk State Technical University, pr. Karla Marksa 20, Novosibirsk
来源：
Optoelectronics, Instrumentation and Data Processing | 2018年 / 54卷 / 6期
关键词：
laser heterodyne microprobing; optical materials; phase microinhomogeneity;
D O I：
10.3103/S8756699018060031
中图分类号：
学科分类号：
摘要：
A method for studying internal phase inhomogeneities in transparent optical materials by point-to-point three-dimensional laser heterodyne microprobing is proposed. The light microprobe in this case is a traveling micrograting formed in the zone of overlapping of two focused coherent light beams: reference and signal. The size of the microprobe in the x, y, z directions and the degree of influence of spherical aberration with a change in the microprobing depth are estimated. The capabilities of the method are illustrated by examples of detection and subsequent imaging of phase inhomogeneities in the volume of laser ceramics and its random layers. © 2018, Allerton Press, Inc.
引用
收藏
页码：546 / 556
页数：10
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