Total Scattering Cross Section for Na on He Measured by Stimulated Photon Echoes

Total Scattering Cross Section for Na on He Measured by Stimulated Photon Echoes

A coherent-transient laser technique which employs heretofore unappreciated aspects of the optical stimulated echo was developed and used to measure the total scattering cross section for Na(3S 1 /2)-He and Na(3P 1/2)-He collisions. The repulsive-core-dominated Na(3S 1/2)-He collision is found to be...

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Veröffentlicht in:Physical review letters 1979-06, Vol.42 (25), p.1665-1669
Hauptverfasser: Mossberg, T., Flusberg, A., Kachru, R., Hartmann, S. R.
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container_end_page 1669
container_issue 25
container_start_page 1665
container_title Physical review letters
container_volume 42
creator Mossberg, T.
Flusberg, A.
Kachru, R.
Hartmann, S. R.
description A coherent-transient laser technique which employs heretofore unappreciated aspects of the optical stimulated echo was developed and used to measure the total scattering cross section for Na(3S 1 /2)-He and Na(3P 1/2)-He collisions. The repulsive-core-dominated Na(3S 1/2)-He collision is found to be relatively soft. The cross section for degradation of the 3S 1/2-3P 1/2 superposition, determined from photon-echo-decay measurements, is anomalous in that it is smaller than the total elastic-scattering cross section with Na in either state separately.
doi_str_mv 10.1103/PhysRevLett.42.1665
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title Total Scattering Cross Section for Na on He Measured by Stimulated Photon Echoes
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