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    Second-Harmonic Generation for Narrow-Line Cooling of 7Li

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    Author
    Luo, Henry
    Date
    2017-02-14
    Advisor
    Hulet, Randall G
    Degree
    Master of Science
    Abstract
    Laser cooling of lithium atoms is usually performed on the 2S1/2 to 2P3/2 transition at 671 nm. The Doppler temperature of this transition, which is the limit temperature of laser cooling, is 140 µK. The 2S1/2 to 3P3/2 transition at 323 nm has a Doppler temperature 7 times smaller than that of the 671 nm transition. With the 323 nm transition, it is possible to reach a temperature low enough for an all-optical production of a Bose-Einstein condensate. The 323 nm light is produced by second-harmonic generation (SHG). We present our design of the laser system that generates light at 646 nm and the frequency-doubling cavity for SHG. The laser frequency is stabilized by a Fabry-Perot cavity and an Iodine transition.
    Keyword
    Second-harmonic generation; Laser cooling
    Citation
    Luo, Henry. "Second-Harmonic Generation for Narrow-Line Cooling of 7Li." (2017) Master’s Thesis, Rice University. https://hdl.handle.net/1911/96050.
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    Managed by the Digital Scholarship Services at Fondren Library, Rice University
    Physical Address: 6100 Main Street, Houston, Texas 77005
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    Site Map