Spatial resolution-preserving retroreflection for gas-phase laser scattering measurements in turbulent flames using a phase-conjugate mirror

被引：1
|
作者：
Marrinan, Daniel P. [1 ]
Fuest, Frederik [1 ]
Sutton, Jeffrey A. [1 ]
机构：
[1] Ohio State Univ, Dept Mech & Aerosp Engn, 201 W 19th Ave, Columbus, OH 43210 USA
来源：
OPTICS LETTERS | 2016年 / 41卷 / 03期
基金：
美国国家科学基金会;
关键词：
RAMAN-SCATTERING; MULTIPASS CELL; DIAGNOSTICS;
D O I：
10.1364/OL.41.000468
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
This Letter reports on the demonstration of a stimulated Brillouin-scattering phase conjugate mirror (SBS-PCM) for multipass laser-based scattering measurements in turbulent flames. Retroreflective measurements using the SBS-PCM show substantial improvements in spatial-resolution preservation as compared to measurements using a conventional mirror as a multipass reflector. The results using the SBS-PCM indicate an insensitivity to large index-of-refraction gradients and preservation of the original spatial resolution as defined by the laser beam under reacting flow conditions. This approach offers the possibility of increasing signal-to-noise ratios within low-signal gas-phase measurements such as Rayleigh and Raman scattering. (C) 2016 Optical Society of America
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页码：468 / 471
页数：4
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