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.

Comments

Posted in accordance with policies allowed by the publisher and copyright holder, APS. https://journals.aps.org/copyrightFAQ.html.
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.

DOI

10.1103/PhysRevA.80.062718

Source Publication

Physical Review A

Included in

Physics Commons

Share

COinS