Ultraviolet absorption and laser-induced fluorescence of shock-heated acetylene
Ultraviolet absorption and laser-induced fluorescence of shock-heated acetylene
复制标题
冲击加热乙炔的紫外吸收和激光诱导荧光
DOI:
10.1016/j.proci.2016.05.018
复制
发表时间:
2017
期刊:
影响因子:
--
通讯作者:
C. Schulz
中科院分区:
文献类型:
--
作者:
S. Zabeti;M. Fikri;C. Schulz
Acetylene as a major intermediate in fuel pyrolysis and combustion has so far mostly been ignored as a contributor to UV absorption and fluorescence. Temperature-dependent ultraviolet absorption cross-sections of acetylene (C2H2) have been studied behind reflected shock waves between 565 and 1500 K. Light from a deuterium lamp was transmitted through shock-heated gas mixtures and transmission spectra were recorded with ∼50 µs time resolution. The absorption spectra strongly depend on temperature and show a strong red-shift with temperature. Above 900 K, significant absorption is observed at 266 nm. Laser-induced fluorescence (LIF) spectra were recorded in the shock tube using 266-nm laser excitation. In accord with absorption experiments, no LIF signal is observed below 900 K. Above, the fluorescence intensity increases and the fluorescence spectra become broader over the studied temperature range. From fluorescence intensity and absorption cross-sections, relative effective fluorescence quantum yields are determined as a function of temperature.
登录
查看更多内容
影响因子:
1.4
作者:
J. V. Craen;M. Herman;R. Colin;J. Watson
通讯作者:
J. Watson
影响因子:
4.4
作者:
S. Hamai;F. Hirayama
通讯作者:
F. Hirayama
影响因子:
1.4
作者:
J. Watson;M. Herman;J. V. Craen;R. Colin
通讯作者:
R. Colin
影响因子:
2.4
作者:
Y. Bénilan;N. Smith;A. Jolly;F. Raulin
通讯作者:
F. Raulin
影响因子:
1.5
作者:
C. Wu;H. Singh;R. D. Kern
通讯作者:
R. D. Kern