Ground-state grating echoes from Rb vapor at room temperature

A. Kumarakrishnan, U. Shim, S. B. Cahn, T. Sleator

    Research output: Contribution to journalArticle

    Abstract

    We have used two sets of opposite circularly polarized traveling wave pulses separated in time to establish, and subsequently rephase, a spatially modulated coherence between the magnetic sublevels of the F= 3 ground state in Doppler broadened 85Rb vapor. The rephasing results in a magnetic grating echo whose duration is an accurate measure of the velocity distribution. We demonstrate that the time scale of the experiment is determined solely by the transit time of atoms across the laser beam. The shortening of the lifetime due to a perturber (Ar) allows us to infer the Rb-Ar velocity changing collision cross section.

    Original languageEnglish (US)
    Pages (from-to)3868-3872
    Number of pages5
    JournalPhysical Review A
    Volume58
    Issue number5
    StatePublished - Nov 1998

    Fingerprint

    echoes
    gratings
    vapors
    ground state
    room temperature
    transit time
    traveling waves
    velocity distribution
    laser beams
    life (durability)
    collisions
    cross sections
    pulses
    atoms

    ASJC Scopus subject areas

    • Physics and Astronomy(all)
    • Atomic and Molecular Physics, and Optics

    Cite this

    Kumarakrishnan, A., Shim, U., Cahn, S. B., & Sleator, T. (1998). Ground-state grating echoes from Rb vapor at room temperature. Physical Review A, 58(5), 3868-3872.

    Ground-state grating echoes from Rb vapor at room temperature. / Kumarakrishnan, A.; Shim, U.; Cahn, S. B.; Sleator, T.

    In: Physical Review A, Vol. 58, No. 5, 11.1998, p. 3868-3872.

    Research output: Contribution to journalArticle

    Kumarakrishnan, A, Shim, U, Cahn, SB & Sleator, T 1998, 'Ground-state grating echoes from Rb vapor at room temperature', Physical Review A, vol. 58, no. 5, pp. 3868-3872.
    Kumarakrishnan A, Shim U, Cahn SB, Sleator T. Ground-state grating echoes from Rb vapor at room temperature. Physical Review A. 1998 Nov;58(5):3868-3872.
    Kumarakrishnan, A. ; Shim, U. ; Cahn, S. B. ; Sleator, T. / Ground-state grating echoes from Rb vapor at room temperature. In: Physical Review A. 1998 ; Vol. 58, No. 5. pp. 3868-3872.
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