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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Editor: Henry Van Driel
  • Vol. 26, Iss. 4 — Apr. 1, 2009
  • pp: 867–875

Multiphoton adiabatic passage for atom optics applications

Gabor Demeter and Gagik P. Djotyan  »View Author Affiliations


JOSA B, Vol. 26, Issue 4, pp. 867-875 (2009)
http://dx.doi.org/10.1364/JOSAB.26.000867


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Abstract

We study the force exerted on two-level atoms by short, counterpropagating laser pulses. When the counterpropagating pulses overlap each other partially, multiphoton adiabatic processes are possible in several configurations, which amplify the force exerted on the atoms. We investigate the practical usefulness of such multiphoton adiabatic transitions for the manipulation of the atoms’ mechanical state. In particular, we compare the efficiency of a pair of constant frequency, oppositely detuned laser pulses and that of a pair of frequency-chirped pulses. We also consider the case of prolonged exposure to a sequence of laser pulses for a duration that is comparable to or much larger than the spontaneous lifetime of the atoms. We use numerical methods to calculate the reduction of the force and the heating of the atomic ensemble when spontaneous emission cannot be neglected during the interaction. In addition, we derive simple approximate formulas for the force and the heating, and compare them to the numerical results.

© 2009 Optical Society of America

OCIS Codes
(020.4180) Atomic and molecular physics : Multiphoton processes
(320.1590) Ultrafast optics : Chirping
(020.3320) Atomic and molecular physics : Laser cooling

ToC Category:
Atomic and Molecular Physics

History
Original Manuscript: January 13, 2009
Revised Manuscript: March 3, 2009
Manuscript Accepted: March 3, 2009
Published: March 31, 2009

Citation
Gabor Demeter and Gagik P. Djotyan, "Multiphoton adiabatic passage for atom optics applications," J. Opt. Soc. Am. B 26, 867-875 (2009)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-26-4-867


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