Document Type
Article
Publication Date
12-2009
Abstract
The pressure broadening and shift rates for the cesium D1 (62P1/2 ← 6 2S1/2) transition with the noble gases and N2, H2, HD, D2, CH4, C2H6, CF4, and 3He were obtained for pressures less than 300 torr at temperatures under 65 °C by means of laser absorption spectroscopy. The collisional broadening rate, γL, for He, Ne, Ar, Kr, Xe, N2, H2, HD, D2, CH4, C2H6, CF4, and 3He are 24.13, 10.85, 18.31, 17.82, 19.74, 16.64, 20.81, 20.06, 18.04, 29.00, 26.70, 18.84, and 26.00 MHz/torr, respectively. The corresponding pressure-induced shift rates, δ, are 4.24, −1.60, −6.47, −5.46, −6.43, −7.76, 1.11, 0.47, 0.00, −9.28, −8.54, −6.06, and 6.01 MHz/torr. These rates have then been utilized to calculate Lennard-Jones potential coefficients to quantify the interatomic potential surfaces. The broadening cross section has also been shown to correlate with the polarizability of the collision partner.
DOI
10.1103/PhysRevA.80.062718
Source Publication
Physical Review A
Recommended Citation
Pitz, G. A., Wertepny, D. E., & Perram, G. P. (2009). Pressure broadening and shift of the cesium D1 transition by the noble gases and N2, H2, HD, D2, CH4, C2H6, CF4, and 3He. Physical Review A, 80(6), 062718. https://doi.org/10.1103/PhysRevA.80.062718
Comments
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This article may be downloaded for personal use only. Any other use requires prior permission of the author and APS. This article appeared in Physical Review A, 80, 062718 and may be found at https://doi.org/10.1103/PhysRevA.80.062718.