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Optics Letters

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  • Editor: Alan E. Willner
  • Vol. 34, Iss. 23 — Dec. 1, 2009
  • pp: 3638–3640

Cs 894.3 nm laser pumped by photoassociation of Cs–Kr pairs: excitation of the Cs D 2 blue and red satellites

J. D. Readle, J. T. Verdeyen, J. G. Eden, S. J. Davis, K. L. Galbally-Kinney, W. T. Rawlins, and W. J. Kessler  »View Author Affiliations


Optics Letters, Vol. 34, Issue 23, pp. 3638-3640 (2009)
http://dx.doi.org/10.1364/OL.34.003638


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Abstract

Lasing on the D 1 transition ( 6 P 1 2 2 6 S 1 2 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 D 2 line ( 6 P 3 2 2 6 S 1 2 2 ) , peaking at 841.1 nm and 853 nm (respectively) in Cs Kr C 2 H 6 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 × 10 14 1.5 × 10 15 cm 3 and the pump wavelength is 841.1 nm . Direct photoexcitation of the Cs 6 P 3 2 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.

© 2009 Optical Society of America

OCIS Codes
(020.0020) Atomic and molecular physics : Atomic and molecular physics
(020.3690) Atomic and molecular physics : Line shapes and shifts
(140.1340) Lasers and laser optics : Atomic gas lasers

ToC Category:
Atomic and Molecular Physics

History
Original Manuscript: June 24, 2009
Manuscript Accepted: September 17, 2009
Published: November 19, 2009

Citation
J. D. Readle, J. T. Verdeyen, J. G. Eden, S. J. Davis, K. L. Galbally-Kinney, W. T. Rawlins, and W. J. Kessler, "Cs 894.3 nm laser pumped by photoassociation of Cs-Kr pairs: excitation of the Cs D2 blue and red satellites," Opt. Lett. 34, 3638-3640 (2009)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-34-23-3638


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