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    Stimulated directional emission induced by two-photon excitation of the Xe 6p′ and Xe 7p states


    Alekseev, Vadim A. and van der Burgt, Peter J.M. and Setser, D.W. (2017) Stimulated directional emission induced by two-photon excitation of the Xe 6p′ and Xe 7p states. Journal of Chemical Physics, 146 (094304). ISSN 0021-9606

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    Abstract

    Stimulated emission (SE) induced by pulsed two-photon excitation of the 6p′[1/2]0, 6p′[3/2]2, 7p[1/2]0, 7p[3/2]2, and 7p[5/2]2 states of the Xe atom has been studied. Spectra of SE were recorded in the 800–3500 nm region, which covers the 6p′, 7p → 7s (2500–3500 nm), 6p′, 7p → 5d (1000–2000 nm), 7s → 6p (1200–1900 nm) transitions, as well as the near-IR 6p → 6s (800–1000 nm) transitions. It is shown that excitation of the 7p states results in radiative cascade via the 7s states, 7p → 7s → 6p, although at least one case of cascading via the 5d states is also observed. Spectra of SE induced by excitation of the 6p′ states are dominated by the 6p′ → 6s′ transitions in the near IR and the 6p′ → 5d[1/2]1 → 6p[1/2]1 → 6s[3/2]1 cascade; the 6p′ → 7s → 6p cascade is also observed, although the secondary 7s → 6p emission is rather weak in comparison with excitation of the 7p states.

    Item Type: Article
    Keywords: Amplified Spontaneous Emission; Halogen-containing Molecules; Laser; Quenching Rate Constants; Physics; Atomic; Molecular & chemical; Xenon; Chemistry, Physical; Atoms; Generation; Pulsed-Source; Ionization;
    Academic Unit: Faculty of Science and Engineering > Experimental Physics
    Item ID: 11794
    Identification Number: https://doi.org/10.1063/1.4977522
    Depositing User: Dr Peter van der Burgt
    Date Deposited: 21 Nov 2019 15:43
    Journal or Publication Title: Journal of Chemical Physics
    Publisher: American Institute of Physics
    Refereed: Yes
    URI:

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