COLLISIONAL RAMAN LINEWIDTHS OF NITROGEN AT HIGH-TEMPERATURE (1700-2400 K)

被引:21
作者
LAVOREL, B [1 ]
GUILLOT, L [1 ]
BONAMY, J [1 ]
ROBERT, D [1 ]
机构
[1] UNIV FRANCHE COMTE,PHYS MOLEC LAB,CTR NATL RECH SCI,UNITE RECH ASSOC 772,F-25030 BESANCON,FRANCE
关键词
D O I
10.1364/OL.20.001189
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
New high-temperature measurements of collisional linewidths of the Roman Q branch of nitrogen have been performed at 1700-2400 K with stimulated Raman spectroscopy in a tungsten filament. We fitted these data together with previous data obtained in the 295-1500-K range to redetermine the parameters of the relaxation models used in coherent anti-Stokes Raman spectroscopy thermometry. The improvement in the accuracy of the temperature measurement has been checked. Semiclassical calculations of linewidths in the 1700-2400-K range agree with the experimental data and have been extended to even higher temperatures.
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页码:1189 / 1191
页数:3
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