He-, Ne- and Kr-broadening coefficients of lines in the fundamental 谓₃ band of ¹²C³²S₂ at low temperature

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• 作者：Pardaillan Kongolo Tshikala¹ ; Jean-Claude Populaire ; Ghislain Blanquet ; Muriel Lepè ; re ; ^{muriel.lepere@unamur.be" class="auth_mail}
• 关键词：Diode-laser ; Collisional broadening ; Carbon disulfide ; Rare gases
• 刊名：Journal of Molecular Spectroscopy
• 出版年：April, 2014
• 年：2014
• 卷：298
• 期：Complete
• 页码：24-30
• 全文大小：681 K

文摘

Using a tunable diode-laser spectrometer coupled with a low temperature cell, He-, Ne- and Kr-broadening coefficients of 8 lines in the fundamental 谓₃ band of CS₂ have been measured at five low temperatures: 173 K, 198 K, 223 K, 248 K and 273 K. These lines with J values ranging from 2 to 78 are located in the spectral range 1514-1544 cm^鈭?, four lines in the P branch and four in the R branch. The collisional half-widths have been obtained by adjusting each experimental profile with a Voigt, Rautian and Galatry lineshape model. For each line, the collisional broadening coefficients obtained at low temperature and those previously at room temperature have been used to deduce the n-parameter of the temperature dependence. We have also determined the average value of the temperature dependence of collisional broadening coefficients for lines in the 谓₃ band of CS₂ diluted in helium, neon and krypton.