Cs 894.3 nm laser pumped by photoassociation of Cs-Kr pairs: Excitation of the Cs D2 blue and red satellites

J. D. Readle, J. T. Verdeyen, James Gary Eden, S. J. Davis, K. L. Gabally-Kinney, W. T. Rawlins, W. J. Kessler

Research output: Contribution to journalArticle

Abstract

Lasing on the D1 transition (62P1/2→ 62S1/2) of Cs has been observed by photoassociating Cs-Kr atomic pairs with a tunable, pulsed dye laser. Pumping of the blue or red satellites of the Cs D2 line (62P3/2⇆6 2S1/2), peaking at ∼841.1 nm and ∼853 nm (respectively) in Cs/Kr/C2H6 gas mixtures, provides a photodissociation laser in which the CsKr excimer parent molecule is not, at any point in the pumping process, in a bound electronic state. Relative to the absorbed pump pulse energy, laser slope efficiencies ≳5% have been measured when the Cs number density is in the range of 5 x 1014-1.5 x 10 15 cm-3 and the pump wavelength is 841.1 nm. Direct photoexcitation of the Cs 62P3/2 state at 852.1 nm under these conditions is a less efficient pathway for pumping the 894.3 nm laser, presumably as a result of competing nonlinear optical processes such as 1+2 resonantly enhanced multiphoton ionization of the alkali atom.

Original languageEnglish (US)
Pages (from-to)3638-3640
Number of pages3
JournalOptics Letters
Volume34
Issue number23
DOIs
StatePublished - Dec 1 2009

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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    Readle, J. D., Verdeyen, J. T., Eden, J. G., Davis, S. J., Gabally-Kinney, K. L., Rawlins, W. T., & Kessler, W. J. (2009). Cs 894.3 nm laser pumped by photoassociation of Cs-Kr pairs: Excitation of the Cs D2 blue and red satellites. Optics Letters, 34(23), 3638-3640. https://doi.org/10.1364/OL.34.003638