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Title: Pressure broadening and shift of the cesium D{sub 2} 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 with comparison to the D{sub 1} transition

Abstract

The pressure broadening and shift rates for the cesium D{sub 2} (6 {sup 2}P{sub 3/2} (<-) 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 a temperature of 40 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 20.59, 9.81, 16.47, 15.54, 18.41, 19.18, 27.13, 28.24, 22.84, 25.84, 26.14, 17.81, and 22.35 MHz/Torr, respectively. The uncertainty in the broadening rates is typically less than 0.3%. The corresponding pressure-induced shift rates {delta} are 0.69, -2.58, -6.18, -6.09, -6.75, -6.20, -4.83, -4.49, -4.54, -8.86, -9.38, -6.47, and 0.60 MHz/Torr with an uncertainty of less than 0.04 MHz/Torr. With the exception of diatomic collision partners, the broadening rates for Cs D{sub 2} are 5%-15% less than the rates for Cs D{sub 1}. For light collision partners with a blue shift, the D{sub 1} is shifted more than the D{sub 2} line. The broadening cross sections for Csmore » and Rb are similar. However, the cross sections for K are about 70% larger and for Na, about 30% less.« less

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:
21450762
Resource Type:
Journal Article
Journal Name:
Physical Review. A
Additional Journal Information:
Journal Volume: 82; Journal Issue: 4; Other Information: DOI: 10.1103/PhysRevA.82.042502; (c) 2010 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 COLLISIONS; CARBON TETRAFLUORIDE; CESIUM; COMPARATIVE EVALUATIONS; CROSS SECTIONS; DIMETHYL SULFIDE; ENERGY-LEVEL TRANSITIONS; ETHANE; HELIUM 3; HYDROGEN; LINE BROADENING; METHANE; MHZ RANGE; RARE GASES; VISIBLE RADIATION; ALKALI METALS; ALKANES; CHALCOGENIDES; COLLISIONS; ELECTROMAGNETIC RADIATION; ELEMENTS; EVALUATION; EVEN-ODD NUCLEI; FLUIDS; FLUORINATED ALIPHATIC HYDROCARBONS; FREQUENCY RANGE; GASES; HALOGENATED ALIPHATIC HYDROCARBONS; HELIUM ISOTOPES; HYDROCARBONS; ISOTOPES; LIGHT NUCLEI; METALS; NONMETALS; NUCLEI; ORGANIC COMPOUNDS; ORGANIC FLUORINE COMPOUNDS; ORGANIC HALOGEN COMPOUNDS; ORGANIC SULFUR COMPOUNDS; RADIATIONS; SPECTROSCOPY; STABLE ISOTOPES; SULFIDES; SULFUR COMPOUNDS

Citation Formats

Pitz, Greg A, Fox, Charles D, and Perram, Glen P. Pressure broadening and shift of the cesium D{sub 2} 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 with comparison to the D{sub 1} transition. United States: N. p., 2010. Web. doi:10.1103/PHYSREVA.82.042502.
Pitz, Greg A, Fox, Charles D, & Perram, Glen P. Pressure broadening and shift of the cesium D{sub 2} 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 with comparison to the D{sub 1} transition. United States. doi:10.1103/PHYSREVA.82.042502.
Pitz, Greg A, Fox, Charles D, and Perram, Glen P. Fri . "Pressure broadening and shift of the cesium D{sub 2} 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 with comparison to the D{sub 1} transition". United States. doi:10.1103/PHYSREVA.82.042502.
@article{osti_21450762,
title = {Pressure broadening and shift of the cesium D{sub 2} 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 with comparison to the D{sub 1} transition},
author = {Pitz, Greg A and Fox, Charles D and Perram, Glen P},
abstractNote = {The pressure broadening and shift rates for the cesium D{sub 2} (6 {sup 2}P{sub 3/2} (<-) 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 a temperature of 40 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 20.59, 9.81, 16.47, 15.54, 18.41, 19.18, 27.13, 28.24, 22.84, 25.84, 26.14, 17.81, and 22.35 MHz/Torr, respectively. The uncertainty in the broadening rates is typically less than 0.3%. The corresponding pressure-induced shift rates {delta} are 0.69, -2.58, -6.18, -6.09, -6.75, -6.20, -4.83, -4.49, -4.54, -8.86, -9.38, -6.47, and 0.60 MHz/Torr with an uncertainty of less than 0.04 MHz/Torr. With the exception of diatomic collision partners, the broadening rates for Cs D{sub 2} are 5%-15% less than the rates for Cs D{sub 1}. For light collision partners with a blue shift, the D{sub 1} is shifted more than the D{sub 2} line. The broadening cross sections for Cs and Rb are similar. However, the cross sections for K are about 70% larger and for Na, about 30% less.},
doi = {10.1103/PHYSREVA.82.042502},
journal = {Physical Review. A},
issn = {1050-2947},
number = 4,
volume = 82,
place = {United States},
year = {2010},
month = {10}
}