Programmable focused laser differential interferometer with a spatial light modulator as a dynamic diffractive optical element

被引：0
|
作者：
Holladay, Seth [1 ]
Zhang, Zhili [1 ]
机构：
[1] Univ Tennessee, Dept Mech Aerosp & Biomed Engn, Knoxville, TN 37996 USA
来源：
OPTICS LETTERS | 2023年 / 48卷 / 19期
关键词：
FOURIER-TRANSFORM; DESIGN;
D O I：
10.1364/OL.496541
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A spatial light modulator (SLM) is incorporated into a focused laser differential interferometer (FLDI) to generate a nonlinear array of beams, and this setup is used to measure the power spectral density of a Mach-1.5, underexpanded jet of air. The results are compared with measurements from a 1-point FLDI to assess the feasibility of using SLMs in FLDI to serve as dynamic diffractive elements for generating beam arrays of any shape. The spectra comparison illustrates that spatial light modulated-FLDI (SLM-FLDI) detects similar spectral profiles to that of 1-point FLDI, especially dominant frequencies in the jet. SLM-FLDI could provide a useful expansion of FLDI capabilities. (c) 2023 Optica Publishing Group
引用
收藏
页码：5001 / 5004
页数：4
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