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Chinese Optics Letters

Chinese Optics Letters

| PUBLISHED MONTHLY BY CHINESE LASER PRESS AND DISTRIBUTED BY OSA

  • Vol. 1, Iss. 7 — Jul. 20, 2003
  • pp: 395–397

Single-pulse CARS spectra in solid propellant combustion at atmosphere pressure

Zhiyun Hu, Jingru Liu, Zhenrong Zhang, Xiaowei Guan, Meisheng Huang, and Xisheng Ye  »View Author Affiliations


Chinese Optics Letters, Vol. 1, Issue 7, pp. 395-397 (2003)


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Abstract

The unstable-resonator spatially enhanced detection (USED) coherent anti-stokes Raman spectroscopy (CARS) measurements of temperature and N_(2) concentration in the combustion of solid propellant at atmosphere pressure are reported. The USED CARS measurement system has a high spatial solution of ~ 0.1 mm in diameter and 3 mm in length, and permits instantaneous measurement at 10-Hz rate. The single-pulse N_(2) Q-branch CARS spectra have been obtained from the propellant combustion. The temperatures and N_(2) concentrations of the propellant flame at different height have been achieved by fitting the experimental data to theoretical spectra. The results indicate that the temperature is up to ~ 2500 K with N_(2) concentration in a range from 10% to 26%.

© 2005 Chinese Optics Letters

OCIS Codes
(120.1740) Instrumentation, measurement, and metrology : Combustion diagnostics
(120.4820) Instrumentation, measurement, and metrology : Optical systems
(120.6780) Instrumentation, measurement, and metrology : Temperature
(300.6230) Spectroscopy : Spectroscopy, coherent anti-Stokes Raman scattering

Citation
Zhiyun Hu, Jingru Liu, Zhenrong Zhang, Xiaowei Guan, Meisheng Huang, and Xisheng Ye, "Single-pulse CARS spectra in solid propellant combustion at atmosphere pressure," Chin. Opt. Lett. 1, 395-397 (2003)
http://www.opticsinfobase.org/col/abstract.cfm?URI=col-1-7-395

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