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Title: Pressure broadening and shift of the cesium D{sub 1} transition by the noble gases and N{sub 2}, H{sub 2}, HD, D{sub 2}, CH{sub 4}, C{sub 2}H{sub 6}, CF{sub 4}, and {sup 3}He

Abstract

The pressure broadening and shift rates for the cesium D{sub 1} (6 {sup 2}P{sub 1/2}<-6 {sup 2}S{sub 1/2}) transition with the noble gases and N{sub 2}, H{sub 2}, HD, D{sub 2}, CH{sub 4}, C{sub 2}H{sub 6}, CF{sub 4}, and {sup 3}He were obtained for pressures less than 300 torr at temperatures under 65 deg. C by means of laser absorption spectroscopy. The collisional broadening rate, gamma{sub L}, for He, Ne, Ar, Kr, Xe, N{sub 2}, H{sub 2}, HD, D{sub 2}, CH{sub 4}, C{sub 2}H{sub 6}, CF{sub 4}, and {sup 3}He 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, delta, 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.

Authors:
; ;  [1]
  1. Department of Engineering Physics, Air Force Institute of Technology, 2950 Hobson Way, Wright-Patterson Air Force Base, Ohio 45433-7765 (United States)
Publication Date:
OSTI Identifier:
21352362
Resource Type:
Journal Article
Journal Name:
Physical Review. A
Additional Journal Information:
Journal Volume: 80; Journal Issue: 6; Other Information: DOI: 10.1103/PhysRevA.80.062718; (c) 2009 American Institute of Physics; Journal ID: ISSN 1050-2947
Country of Publication:
United States
Language:
English
Subject:
74 ATOMIC AND MOLECULAR PHYSICS; ABSORPTION SPECTROSCOPY; ATOM-MOLECULE COLLISIONS; CARBON TETRAFLUORIDE; CESIUM; CROSS SECTIONS; DEUTERIUM; DIMETHYL SULFIDE; ETHANE; HELIUM 3; HYDROGEN; LENNARD-JONES POTENTIAL; LINE BROADENING; METHANE; MHZ RANGE; NITROGEN; POLARIZABILITY; POTENTIAL ENERGY; RARE GASES; SPECTRAL SHIFT; ALKALI METALS; ALKANES; ATOM COLLISIONS; CHALCOGENIDES; COLLISIONS; ELECTRICAL PROPERTIES; ELEMENTS; ENERGY; EVEN-ODD NUCLEI; FLUIDS; FLUORINATED ALIPHATIC HYDROCARBONS; FREQUENCY RANGE; GASES; HALOGENATED ALIPHATIC HYDROCARBONS; HELIUM ISOTOPES; HYDROCARBONS; HYDROGEN ISOTOPES; ISOTOPES; LIGHT NUCLEI; METALS; MOLECULE COLLISIONS; NONMETALS; NUCLEI; ODD-ODD NUCLEI; ORGANIC COMPOUNDS; ORGANIC FLUORINE COMPOUNDS; ORGANIC HALOGEN COMPOUNDS; ORGANIC SULFUR COMPOUNDS; PHYSICAL PROPERTIES; POTENTIALS; SPECTROSCOPY; STABLE ISOTOPES; SULFIDES; SULFUR COMPOUNDS

Citation Formats

Pitz, Greg A, Wertepny, Douglas E, and Perram, Glen P. Pressure broadening and shift of the cesium D{sub 1} transition by the noble gases and N{sub 2}, H{sub 2}, HD, D{sub 2}, CH{sub 4}, C{sub 2}H{sub 6}, CF{sub 4}, and {sup 3}He. United States: N. p., 2009. Web. doi:10.1103/PHYSREVA.80.062718.
Pitz, Greg A, Wertepny, Douglas E, & Perram, Glen P. Pressure broadening and shift of the cesium D{sub 1} transition by the noble gases and N{sub 2}, H{sub 2}, HD, D{sub 2}, CH{sub 4}, C{sub 2}H{sub 6}, CF{sub 4}, and {sup 3}He. United States. https://doi.org/10.1103/PHYSREVA.80.062718
Pitz, Greg A, Wertepny, Douglas E, and Perram, Glen P. Tue . "Pressure broadening and shift of the cesium D{sub 1} transition by the noble gases and N{sub 2}, H{sub 2}, HD, D{sub 2}, CH{sub 4}, C{sub 2}H{sub 6}, CF{sub 4}, and {sup 3}He". United States. https://doi.org/10.1103/PHYSREVA.80.062718.
@article{osti_21352362,
title = {Pressure broadening and shift of the cesium D{sub 1} transition by the noble gases and N{sub 2}, H{sub 2}, HD, D{sub 2}, CH{sub 4}, C{sub 2}H{sub 6}, CF{sub 4}, and {sup 3}He},
author = {Pitz, Greg A and Wertepny, Douglas E and Perram, Glen P},
abstractNote = {The pressure broadening and shift rates for the cesium D{sub 1} (6 {sup 2}P{sub 1/2}<-6 {sup 2}S{sub 1/2}) transition with the noble gases and N{sub 2}, H{sub 2}, HD, D{sub 2}, CH{sub 4}, C{sub 2}H{sub 6}, CF{sub 4}, and {sup 3}He were obtained for pressures less than 300 torr at temperatures under 65 deg. C by means of laser absorption spectroscopy. The collisional broadening rate, gamma{sub L}, for He, Ne, Ar, Kr, Xe, N{sub 2}, H{sub 2}, HD, D{sub 2}, CH{sub 4}, C{sub 2}H{sub 6}, CF{sub 4}, and {sup 3}He 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, delta, 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},
url = {https://www.osti.gov/biblio/21352362}, journal = {Physical Review. A},
issn = {1050-2947},
number = 6,
volume = 80,
place = {United States},
year = {2009},
month = {12}
}