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    Photoassociative spectroscopy of ultracold lithium(2)-7 and lithium(2)-6

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    Author
    Abraham, Eric R. I.
    Date
    1995
    Advisor
    Hulet, Randall G.
    Degree
    Master of Arts
    Abstract
    We have obtained high-lying vibrational spectra for the $\rm 1\sp3\Sigma\sbsp{g}{+}$ and $\rm 1\sp1\Sigma\sbsp{u}{+}$ excited states of both $\rm \sp7Li\sb2$ and $\rm \sp6Li\sb2$ via photoassociation of colliding ultracold lithium atoms confined in a magneto-optical trap. Photoassociative spectroscopy of ultracold atoms is a powerful tool for probing molecular states near the dissociation energy that are inaccessible by other methods. For an ultracold lithium vapor, the distribution of unbound ground state energies is so small that precise free-bound spectroscopy is possible. Molecular hyperfine structure is resolved. We calculate accurate dissociation energies for both the $\rm 1\sp3\Sigma\sbsp{g}{+}$ and $\rm 1\sp1\Sigma\sbsp{u}{+}$ excited states of Li$\sb2$. A model potential is constructed from a combination of experimental and theoretical information, and used to assign vibrational quantum numbers. We observe rotational structure and assign rotational quantum numbers.
    Keyword
    Atomic physics; Molecular physics; Physical chemistry
    Citation
    Abraham, Eric R. I.. "Photoassociative spectroscopy of ultracold lithium(2)-7 and lithium(2)-6." (1995) Master’s Thesis, Rice University. https://hdl.handle.net/1911/13919.
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    • Rice University Electronic Theses and Dissertations [13405]

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    Home | FAQ | Contact Us | Privacy Notice | Accessibility Statement
    Managed by the Digital Scholarship Services at Fondren Library, Rice University
    Physical Address: 6100 Main Street, Houston, Texas 77005
    Mailing Address: MS-44, P.O.BOX 1892, Houston, Texas 77251-1892
    Site Map