ヤマグチ　トシカズ   YAMAGUCHI TOSHIKAZU   山口　敏和    所属   メディアコミュニケーション学部 情報文化学科    職種   准教授
言語種別	英語
発行・発表の年月	2011/04
形態種別	論文
査読	査読あり
標題	Internal structure of laser supported detonation waves by two-wavelength Mach-Zehnder interferometer
執筆形態	共著
掲載誌名	Journal of Applied Physics
掲載区分	国外
出版社・発行元	American Institute of Physics
巻・号・頁	109(8),pp.084910
担当範囲	Part of Experiments
著者・共著者	Kohei Shimamura, Keigo Hatai, Koichi Kawamura, Akihiro Fukui, Akio Fukuda, Bin Wang, Toshikazu Yamaguchi, Kimiya Komurasaki, and Yoshihiro Arakawa
概要	Characteristics of the internal structure of the laser supported detonation (LSD) waves, such as the electron density ne and the electron temperature Te profiles behind the shock wave were measured using a two-wavelength Mach–Zehnder interferometer along with emission spectroscopy. A TEA CO2 laser with energy of 10 J/pulse produced explosive laser heating in atmospheric air. The temporal variation of the laser absorption coefficient profile estimated from the measured properties reveals that the laser energy was absorbed perfectly in a thin layer behind the shock wave during the LSD regime, as predicted by Raizer’s LSD model. However, the absorption layer was much thinner than a plasma layer, the situation of which was not considered in Raizer’s model. The measured ne at the shock front was not zero while the LSD was supported, which implies that the precursor electrons exist ahead of the shock wave.
DOI	10.1063/1.3574922
ISSN	0021-8979