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Journal of the Optical Society of America A

Journal of the Optical Society of America A

| OPTICS, IMAGE SCIENCE, AND VISION

  • Editor: Stephen A. Burns
  • Vol. 23, Iss. 11 — Nov. 1, 2006
  • pp: 2817–2828

Concept for polychromatic laser guide stars: one-photon excitation of the 4 P 3 2 level of a sodium atom

Jean-Paul Pique, Ioana Cristina Moldovan, and Vincent Fesquet  »View Author Affiliations


JOSA A, Vol. 23, Issue 11, pp. 2817-2828 (2006)
http://dx.doi.org/10.1364/JOSAA.23.002817


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Abstract

One challenge for polychromatic laser guide stars is to create a sufficiently intense source in the UV. The flux required for the measurement of differential tip–tilt is the main issue that we address. We describe a model that has been validated using on-sky data. We present a method that excites the 4 P 3 2 sodium level using a one-photon excitation at 330 nm . It is more efficient than the two-photon excitation previously suggested since its power slope flux is 3 × 10 4 photons s m 2 W instead of 1.3 × 10 3 photons s m 2 W . This method is very promising both in terms of flux and system simplicity.

© 2006 Optical Society of America

OCIS Codes
(010.1080) Atmospheric and oceanic optics : Active or adaptive optics
(010.1330) Atmospheric and oceanic optics : Atmospheric turbulence
(020.4180) Atomic and molecular physics : Multiphoton processes
(030.4070) Coherence and statistical optics : Modes
(140.3610) Lasers and laser optics : Lasers, ultraviolet
(260.2510) Physical optics : Fluorescence

ToC Category:
Atmospheric and Oceanic Optics

History
Original Manuscript: January 3, 2006
Manuscript Accepted: May 10, 2006

Citation
Jean-Paul Pique, Ioana Cristina Moldovan, and Vincent Fesquet, "Concept for polychromatic laser guide stars: one-photon excitation of the 4P3/2 level of a sodium atom," J. Opt. Soc. Am. A 23, 2817-2828 (2006)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-23-11-2817

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