Enhanced frequency up-conversion in Rb vapor

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Vernier, A. and Franke-Arnold, S. and Riis, E. and Arnold, A. S. (2010) Enhanced frequency up-conversion in Rb vapor. Optics Express, 18 (16). pp. 17020-17026. ISSN 1094-4087 (https://doi.org/10.1364/OE.18.017020)

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Abstract

We demonstrate highly efficient generation of coherent 420 nm light via up-conversion of near-infrared lasers in a hot rubidium vapor cell. By optimizing pump polarizations and frequencies we achieve a single-pass conversion efficiency of 260% per Watt, significantly higher than in previous experiments. A full exploration of the coherent light generation and fluorescence as a function of both pump frequencies reveals that coherent blue light is generated close to Rb-85 two-photon resonances, as predicted by theory, but at high vapor pressure is suppressed in spectral regions that do not support phase matching or exhibit single-photon Kerr refraction. Favorable scaling of our current 1 mW blue beam power with additional pump power is predicted.

ORCID iDs

Vernier, A., Franke-Arnold, S., Riis, E. ORCID logoORCID: https://orcid.org/0000-0002-3225-5302 and Arnold, A. S. ORCID logoORCID: https://orcid.org/0000-0001-7084-6958;
  • Item type:Article
    ID code:28924
    Dates:
    Date
    Event
    2 August 2010
    Published
    Subjects:Science > Physics
    Department:Faculty of Science > Physics
    Depositing user: Pure Administrator
    Date deposited:21 Mar 2011 15:28
    Last modified:12 Dec 2024 02:32
    URI:https://strathprints.strath.ac.uk/id/eprint/28924
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