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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. 27, Iss. 8 — Aug. 1, 2010
  • pp: 1645–1650

Interference between electromagnetically induced transparency and two-step excitation in three-level ladder systems

Nobuhito Hayashi, Akihiko Fujisawa, Hiroaki Kido, Ken-ichi Takahashi, and Masaharu Mitsunaga  »View Author Affiliations


JOSA B, Vol. 27, Issue 8, pp. 1645-1650 (2010)
http://dx.doi.org/10.1364/JOSAB.27.001645


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Abstract

We have performed electromagnetically induced transparency (EIT) and two-photon absorption experiments in ladder-type three-level systems in a hot sodium atomic vapor, using the 3 S 1 / 2 - 3 P 1 / 2 - 4 D 3 / 2 , 3 S 1 / 2 - 3 P 3 / 2 - 4 D 3 / 2 , 5 / 2 , 3 S 1 / 2 - 3 P 1 / 2 - 5 S 1 / 2 , and 3 S 1 / 2 - 3 P 3 / 2 - 5 S 1 / 2 transitions. In particular, in the most pronounced 3 S 1 / 2 - 3 P 1 / 2 - 4 D 3 / 2 system, we have observed quite unique spectral line shapes that are superpositions of sharp dips and peaks, in contrast to ordinary EIT spectra. The peaks and dips have apparently different physical origins, and the line shape can be interpreted as the interference between EIT and two-step excitation.

© 2010 Optical Society of America

OCIS Codes
(270.1670) Quantum optics : Coherent optical effects
(300.2570) Spectroscopy : Four-wave mixing
(300.6290) Spectroscopy : Spectroscopy, four-wave mixing
(300.6320) Spectroscopy : Spectroscopy, high-resolution
(300.6420) Spectroscopy : Spectroscopy, nonlinear

ToC Category:
Spectroscopy

History
Original Manuscript: April 21, 2010
Revised Manuscript: June 9, 2010
Manuscript Accepted: June 27, 2010
Published: July 26, 2010

Citation
Nobuhito Hayashi, Akihiko Fujisawa, Hiroaki Kido, Ken-ichi Takahashi, and Masaharu Mitsunaga, "Interference between electromagnetically induced transparency and two-step excitation in three-level ladder systems," J. Opt. Soc. Am. B 27, 1645-1650 (2010)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-27-8-1645

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