Preliminary tests for coherent anti-Stokes Raman spectroscopic measurement of radiation behind strong shock waves

Hiroyuki Ando; Katsumi Miyazaki; Kazunori Takada; Kazuhiro Toyoda; Kazuo Maeno

doi:10.1117/12.580362

17 March 2005 Preliminary tests for coherent anti-Stokes Raman spectroscopic measurement of radiation behind strong shock waves

Hiroyuki Ando, Katsumi Miyazaki, Kazunori Takada, Kazuhiro Toyoda, Kazuo Maeno

Author Affiliations +

Proceedings Volume 5580, 26th International Congress on High-Speed Photography and Photonics; (2005) https://doi.org/10.1117/12.580362
Event: 26th International Congress on High-Speed Photography and Photonics, 2004, Alexandria, Virginia, United States

Abstract

When space vehicles reenter onto the atmosphere with velocity over 10 km/s, radiative heating from the shocked air ahead of the vehicle plays an important role on the heat flux to the wall surface as well as convective heating. So far, spectroscopic study has been developed for temperature measurement of radiation behind strong shock waves. In this paper, CARS method (Coherent Anti-Stokes Raman Spectroscopy) for radiation behind strong shock waves in gases has been applied. The CARS measurement system consists of a YAG laser, a dye laser, and high-sensitivity CCD camera systems. The preliminary tests have been performed for the purpose of detecting CARS signal from strong shock waves with velocity range over 5km/s.

Citation Download Citation

Hiroyuki Ando, Katsumi Miyazaki, Kazunori Takada, Kazuhiro Toyoda, and Kazuo Maeno "Preliminary tests for coherent anti-Stokes Raman spectroscopic measurement of radiation behind strong shock waves", Proc. SPIE 5580, 26th International Congress on High-Speed Photography and Photonics, (17 March 2005); https://doi.org/10.1117/12.580362

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