Transfer between the cesium 6 {sup 2}P{sub 1/2} and 6 {sup 2}P{sub 3/2} levels induced by collisions with H{sub 2}, HD, D{sub 2}, CH{sub 4}, C{sub 2}H{sub 6}, CF{sub 4}, and C{sub 2}F{sub 6}

doi:https://doi.org/10.1103/PHYSREVA.84.032708

Title: Transfer between the cesium 6 {sup 2}P{sub 1/2} and 6 {sup 2}P{sub 3/2} levels induced by collisions with H{sub 2}, HD, D{sub 2}, CH{sub 4}, C{sub 2}H{sub 6}, CF{sub 4}, and C{sub 2}F{sub 6}

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Abstract

The cross sections of spin-orbit energy exchange between the cesium 6 {sup 2}P{sub 1/2}{r_reversible}6 {sup 2}P{sub 3/2} states induced by collisions with N{sub 2}, H{sub 2}, HD, D{sub 2}, CH{sub 4}, C{sub 2}H{sub 6}, CF{sub 4}, and C{sub 2}F{sub 6} were obtained for pressures less than 100 Torr at room temperature by means of steady-state laser-induced fluorescence techniques. The spin-orbit energy exchange rate with N{sub 2}, H{sub 2}, HD, D{sub 2}, CH{sub 4}, C{sub 2}H{sub 6}, CF{sub 4}, and C{sub 2}F{sub 6}, have been measured as {sigma}{sub 21}(6 {sup 2}P{sub 3/2}{yields}6 {sup 2}P{sub 1/2})= 16.3, 34.1, 30.0, 22.7, 21.4, 65.6, 64.8, and 137 A{sup 2} and {sigma}{sub 12}(6 {sup 2}P{sub 1/2}{yields}6 {sup 2}P{sub 3/2})= 1.8, 4.4, 4.1, 3.0, 2.9, 13.3, 9.7, and 16.3 A{sup 2}, respectively. Correlations of the spin-orbit transfer probabilities with rotational-energy defect and vibrational-energy defect have been shown.

Authors:

Pitz, Greg A; Fox, Charles D; Perram, Glen P ^[1]

Directed Energy Directorate, Air Force Research Labs, 3550 Aberdeen Ave. SE, Kirtland AFB, New Mexico 87117 (United States)

Publication Date:: 2011-09-15

OSTI Identifier:: 22068710

Resource Type:: Journal Article

Journal Name:: Physical Review. A

Additional Journal Information:: Journal Volume: 84; Journal Issue: 3; Other Information: (c) 2011 American Institute of Physics; Country of input: Syrian Arab Republic; Journal ID: ISSN 1050-2947

Country of Publication:: United States

Language:: English

Subject:: 74 ATOMIC AND MOLECULAR PHYSICS; CARBON TETRAFLUORIDE; CESIUM; COLLISIONS; CORRELATIONS; CROSS SECTIONS; DEFECTS; DIMETHYL SULFIDE; ENERGY TRANSFER; ETHANE; FLUORESCENCE; HYDROGEN; LASERS; METHANE; ORBITS; PROBABILITY; SPIN; STEADY-STATE CONDITIONS; TEMPERATURE RANGE 0273-0400 K

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                    Pitz, Greg A, Fox, Charles D, Perram, Glen P, and Department of Engineering Physics, Air Force Institute of Technology, 2950 Hobson Way, WPAFB, Ohio 45433-7765. Transfer between the cesium 6 {sup 2}P{sub 1/2} and 6 {sup 2}P{sub 3/2} levels induced by collisions with H{sub 2}, HD, D{sub 2}, CH{sub 4}, C{sub 2}H{sub 6}, CF{sub 4}, and C{sub 2}F{sub 6}.  United States: N. p., 2011. 
        Web.  doi:10.1103/PHYSREVA.84.032708.

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                    Pitz, Greg A, Fox, Charles D, Perram, Glen P, & Department of Engineering Physics, Air Force Institute of Technology, 2950 Hobson Way, WPAFB, Ohio 45433-7765. Transfer between the cesium 6 {sup 2}P{sub 1/2} and 6 {sup 2}P{sub 3/2} levels induced by collisions with H{sub 2}, HD, D{sub 2}, CH{sub 4}, C{sub 2}H{sub 6}, CF{sub 4}, and C{sub 2}F{sub 6}.  United States.  https://doi.org/10.1103/PHYSREVA.84.032708

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                    Pitz, Greg A, Fox, Charles D, Perram, Glen P, and Department of Engineering Physics, Air Force Institute of Technology, 2950 Hobson Way, WPAFB, Ohio 45433-7765. Thu .  
        "Transfer between the cesium 6 {sup 2}P{sub 1/2} and 6 {sup 2}P{sub 3/2} levels induced by collisions with H{sub 2}, HD, D{sub 2}, CH{sub 4}, C{sub 2}H{sub 6}, CF{sub 4}, and C{sub 2}F{sub 6}".  United States.  https://doi.org/10.1103/PHYSREVA.84.032708.

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@article{osti_22068710,

  title        = {Transfer between the cesium 6 {sup 2}P{sub 1/2} and 6 {sup 2}P{sub 3/2} levels induced by collisions with H{sub 2}, HD, D{sub 2}, CH{sub 4}, C{sub 2}H{sub 6}, CF{sub 4}, and C{sub 2}F{sub 6}},

  author       = {Pitz, Greg A and Fox, Charles D and Perram, Glen P and Department of Engineering Physics, Air Force Institute of Technology, 2950 Hobson Way, WPAFB, Ohio 45433-7765},

  abstractNote = {The cross sections of spin-orbit energy exchange between the cesium 6 {sup 2}P{sub 1/2}{r_reversible}6 {sup 2}P{sub 3/2} states induced by collisions with N{sub 2}, H{sub 2}, HD, D{sub 2}, CH{sub 4}, C{sub 2}H{sub 6}, CF{sub 4}, and C{sub 2}F{sub 6} were obtained for pressures less than 100 Torr at room temperature by means of steady-state laser-induced fluorescence techniques. The spin-orbit energy exchange rate with N{sub 2}, H{sub 2}, HD, D{sub 2}, CH{sub 4}, C{sub 2}H{sub 6}, CF{sub 4}, and C{sub 2}F{sub 6}, have been measured as {sigma}{sub 21}(6 {sup 2}P{sub 3/2}{yields}6 {sup 2}P{sub 1/2})= 16.3, 34.1, 30.0, 22.7, 21.4, 65.6, 64.8, and 137 A{sup 2} and {sigma}{sub 12}(6 {sup 2}P{sub 1/2}{yields}6 {sup 2}P{sub 3/2})= 1.8, 4.4, 4.1, 3.0, 2.9, 13.3, 9.7, and 16.3 A{sup 2}, respectively. Correlations of the spin-orbit transfer probabilities with rotational-energy defect and vibrational-energy defect have been shown.},

  doi          = {10.1103/PHYSREVA.84.032708},

  url          = {https://www.osti.gov/biblio/22068710},
  journal      = {Physical Review. A},

  issn         = {1050-2947},

  number       = 3,

  volume       = 84,

  place        = {United States},

  year         = {2011},

  month        = {9}

}

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