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Temperature-Dependent Line Shift and Broadening of CO Infrared Transitions
Journal of Molecular Spectroscopy ( IF 1.4 ) Pub Date : 1998-12-01 , DOI: 10.1006/jmsp.1998.7694 Drascher 1 , Giesen , Wang , Schmücker , Schieder , Winnewisser , Joubert , Bonamy
Journal of Molecular Spectroscopy ( IF 1.4 ) Pub Date : 1998-12-01 , DOI: 10.1006/jmsp.1998.7694 Drascher 1 , Giesen , Wang , Schmücker , Schieder , Winnewisser , Joubert , Bonamy
Affiliation
The temperature dependence of lineshift and broadening of the rovibrational transitions R(18) and R(20) of the CO fundamental band, perturbed by Ar, N2, O2, and H2, have been measured with high frequency accuracy and at temperatures between 160 and 270 K in steps of 20 K. A wavelength stabilized tunable diode laser spectrometer has been combined with a low temperature long path cell of 134 m absorption length and 1 m basis length. For all measurements the CO pressure was below 0.1 mbar to avoid self-shift and self-broadening. In case of line broadening the temperature dependence is quite well reproduced by an exponential relation, b(T) = b(T0)(T/T0)-n. For all foreign gases, the exponent n has been obtained (0.53
中文翻译：
与温度相关的线位移和 CO 红外跃迁的展宽
CO 基带的振动跃迁 R(18) 和 R(20) 的线位移和加宽的温度依赖性，受到 Ar、N2、O2 和 H2 的干扰，已经以高频率精度在 160 到270 K，步长为 20 K。波长稳定可调谐二极管激光光谱仪已与 134 m 吸收长度和 1 m 基长的低温长程单元相结合。对于所有测量，CO 压力低于 0.1 毫巴以避免自位移和自展宽。在线加宽的情况下，温度依赖性很好地由指数关系重现，b(T) = b(T0)(T/T0)-n。对于所有外来气体，已获得指数 n (0.53
更新日期：1998-12-01
中文翻译：
与温度相关的线位移和 CO 红外跃迁的展宽
CO 基带的振动跃迁 R(18) 和 R(20) 的线位移和加宽的温度依赖性，受到 Ar、N2、O2 和 H2 的干扰，已经以高频率精度在 160 到270 K，步长为 20 K。波长稳定可调谐二极管激光光谱仪已与 134 m 吸收长度和 1 m 基长的低温长程单元相结合。对于所有测量，CO 压力低于 0.1 毫巴以避免自位移和自展宽。在线加宽的情况下，温度依赖性很好地由指数关系重现，b(T) = b(T0)(T/T0)-n。对于所有外来气体，已获得指数 n (0.53
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