Thermal grating and broadband degenerate four-wave mixing spectroscopy of OH in high-pressure flames

被引：0
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作者：
H. Latzel
A. Dreizler
T. Dreier
J. Heinze
M. Dillmann
W. Stricker
G.M. Lloyd
P. Ewart
机构：
[1] Physikalisch Chemisches Institut,
[2] Universität Heidelberg,undefined
[3] Im Neuenheimer Feld 253,undefined
[4] D-69120 Heidelberg,undefined
[5] Germany,undefined
[6] DLR,undefined
[7] Institut f. Physikalische Chemie der Verbrennung,undefined
[8] Pfaffenwaldring 38-40,undefined
[9] D-70569 Stuttgart,undefined
[10] Germany,undefined
[11] Clarendon Laboratory,undefined
[12] Oxford University,undefined
[13] Parks Road,undefined
[14] Oxford OX1 3PU,undefined
[15] UK (E-mail: p.ewart@physics.oxford.ac.uk),undefined
来源：
Applied Physics B | 1998年 / 67卷
关键词：
PACS: 42.62.Fi; 84.40.Py;
D O I：
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中图分类号：
学科分类号：
摘要：
∑–X2Π(0,0) band of OH has been studied in premixed methane/air flames using a cw Ar+ laser probe. Measurements of flame temperature and pressure were derived from fits of theoretical simulations to the observed time variation of signals over a pressure range of 10 to 40 bar and for different stoichiometry that were in agreement with independent measurements using N2 CARS and predictions of a one-dimensional flame calculation. Broadband DFWM spectra in the same band of OH were observed up to a pressure of 9 bar, above which signals were obtained only from scattering from thermal gratings.
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页码：667 / 673
页数：6
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