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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 19, Iss. 10 — May. 9, 2011
  • pp: 9956–9961

Observation of large contrast electromagnetically induced absorption resonance due to population transfer in a three-level Λ-system interacting with three separate electromagnetic fields

Ido Ben-Aroya and Gadi Eisenstein  »View Author Affiliations


Optics Express, Vol. 19, Issue 10, pp. 9956-9961 (2011)
http://dx.doi.org/10.1364/OE.19.009956


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Abstract

We describe a new scheme to induce large contrast (nearly 50%) absorption resonances using three co-propagating fields which interact with a three-level Λ-system (obtained by the D2 transition of 87Rb atoms) in an N-configuration scheme. A single mode laser which couples the upper ground state to the excited state of 87Rb is phase modulated at half the hyperfine splitting frequency. The resultant three line spectrum interacts with the atomic vapor yielding a population transfer which increases the absorption by an amount which depends on the carrier to modulation side band intensity ratio.

© 2011 OSA

OCIS Codes
(020.1670) Atomic and molecular physics : Coherent optical effects
(300.6210) Spectroscopy : Spectroscopy, atomic
(300.6380) Spectroscopy : Spectroscopy, modulation

ToC Category:
Spectroscopy

History
Original Manuscript: February 22, 2011
Revised Manuscript: March 26, 2011
Manuscript Accepted: April 26, 2011
Published: May 6, 2011

Citation
Ido Ben-Aroya and Gadi Eisenstein, "Observation of large contrast electromagnetically induced absorption resonance due to population transfer in a three-level Λ-system interacting with three separate electromagnetic fields," Opt. Express 19, 9956-9961 (2011)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-19-10-9956


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