Enhanced frequency up-conversion in Rb vapor

A. Vernier, S. Franke-Arnold, E. Riis, A. S. Arnold

Research output: Contribution to journalArticle

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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.

Original languageEnglish
Pages (from-to)17020-17026
Number of pages7
JournalOptics Express
Volume18
Issue number16
DOIs
Publication statusPublished - 2 Aug 2010

Fingerprint

vapors
pumps
coherent light
photons
rubidium
phase matching
infrared lasers
vapor pressure
refraction
scaling
fluorescence
polarization
cells

Keywords

  • electromagnetically induced transparency
  • 2-photon spectroscopy
  • diode-laser
  • rubidium
  • coherent
  • cesium
  • atoms

Cite this

Vernier, A. ; Franke-Arnold, S. ; Riis, E. ; Arnold, A. S. / Enhanced frequency up-conversion in Rb vapor. In: Optics Express. 2010 ; Vol. 18, No. 16. pp. 17020-17026.
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Enhanced frequency up-conversion in Rb vapor. / Vernier, A.; Franke-Arnold, S.; Riis, E.; Arnold, A. S.

In: Optics Express, Vol. 18, No. 16, 02.08.2010, p. 17020-17026.

Research output: Contribution to journalArticle

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AU - Vernier, A.

AU - Franke-Arnold, S.

AU - Riis, E.

AU - Arnold, A. S.

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KW - electromagnetically induced transparency

KW - 2-photon spectroscopy

KW - diode-laser

KW - rubidium

KW - coherent

KW - cesium

KW - atoms

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