Single-shot single-beam coherent Raman scattering thermometry based on optically induced air lasing

被引：3

作者：

Lu, Xu ^{[1
,2
]}

Chen, Yewei ^{[1
,3
]}

Mazza, Francesco ^{[4
]}

He, Siyi ^{[1
,2
]}

Li, Zihan ^{[1
,3
]}

Huang, Shunlin ^{[1
]}

Wang, Quanjun ^{[1
]}

Zhang, Ning ^{[1
,2
]}

Shen, Bo ^{[1
,5
]}

Wu, Yuzhu ^{[1
,6
]}

Yao, Jinping ^{[1
]}

Cheng, Ya ^{[1
]}

机构：

[1] Chinese Acad Sci, Shanghai Inst Opt & Fine Mech, State Key Lab High Field Laser Phys, Shanghai 201800, Peoples R China

[2] Univ Chinese Acad Sci, Ctr Mat Sci & Optoelect Engn, Beijing 100049, Peoples R China

[3] Univ Shanghai Sci & Technol, Sch Opt Elect & Comp Engn, Shanghai 200093, Peoples R China

[4] Delft Univ Technol, Fac Aerosp Engn, Kluyverweg 1, NL-2629 HS Delft, Netherlands

[5] Nankai Univ, Inst Modern Opt, Tianjin 300350, Peoples R China

[6] Shanghai Univ, Sch Microelect, Shanghai 200444, Peoples R China

来源：

LIGHT-SCIENCE & APPLICATIONS | 2024年 / 13卷 / 01期

基金：

荷兰研究理事会; 中国国家自然科学基金; 上海市自然科学基金;

关键词：

GAS TEMPERATURE; SPECTROSCOPY; LASER; CARS;

D O I：

10.1038/s41377-024-01598-9

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Thermometric techniques with high accuracy, fast response and ease of implementation are desirable for the study of dynamic combustion environments, transient reacting flows, and non-equilibrium plasmas. Herein, single-shot single-beam coherent Raman scattering (SS-CRS) thermometry is developed, for the first time to our knowledge, by using air lasing as a probe. We show that the air-lasing-assisted CRS signal has a high signal-to-noise ratio enabling single-shot measurements at a 1 kHz repetition rate. The SS-CRS thermometry consistently exhibits precision of <2.3% at different temperatures, but the inaccuracy grows with the increase in temperature. The high measurement repeatability, 1 kHz acquisition rate and easy-to-implement single-beam scheme are achieved thanks to the unique temporal, spectral and spatial characteristics of air lasing. This work opens a novel avenue for high-speed CRS thermometry, holding tremendous potential for fast diagnostics of transient reacting flows and plasmas.

引用

页数：8

共 43 条

[1] 5 kHz single shot hybrid fs/ps-CARS thermometry in an atmospheric flame [J].