High resolution spectroscopy and spectral simulation of C2 using degenerate four-wave mixing

被引:43
作者
Lloyd, GM [1 ]
Ewart, P [1 ]
机构
[1] Univ Oxford, Clarendon Lab, Oxford OX1 3PU, England
关键词
D O I
10.1063/1.478070
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Degenerate four-wave mixing in the sub-Doppler phase conjugate geometry was used to record high resolution spectra of the d (3)Pi(g)-a (3)Pi(u) (0-0) Swan band of C-2 produced in an oxy-acetylene flame. The line positions of isolated transitions were measured to an accuracy of similar to 3X10(-3) cm(-1) and calibrated using a Fizeau interferometer system. The data obtained from these spectra was used to calculate rotational constants and lambda doubling parameters for the (3)Pi states from which the line positions for the whole band were calculated. Noticeable improvements between experimental and calculated line positions are seen when compared to previously published values. The effect of inaccuracies in line positions on the simulation of degenerate four-wave mixing spectra is discussed and some examples of the improvement in simulation using the newly calculated line positions are presented. (C) 1999 American Institute of Physics. [S0021-9606(99)03701-0].
引用
收藏
页码:385 / 392
页数:8
相关论文
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