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Proceedings Article

Self-induced suppression of probe absorption in four-level atomic media

[+] Author Affiliations
Sh. Petrosyan

Institute for Physical Research (Armenia)

Yu. Malakyan

Institute for Physical Research (Armenia) and Yerevan State Univ. (Armenia)

Proc. SPIE 7998, International Conference on Laser Physics 2010, 79980X (March 04, 2011); doi:10.1117/12.890875
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From Conference Volume 7998

  • International Conference on Laser Physics 2010
  • Aram V. Papoyan
  • Ashtarak, Armenia | October 12, 2010

abstract

The effect of self-induced transparency (SIT) for probe field in the N-type atoms is predicted. The two ground states of atoms are coupled via two photon Raman transitions by means of probe and driving fields, which are strongly detuned from one photon resonance, while the probe field is also resonantly connected to third optical transition from the second ground state. It is found that the probe absorption features the Doppler profile in dependence on Raman detuning δ with a narrow deep for small values of δ. However, in the vicinity of δ=0, an ultra-narrow EIT resonance with subnatural width is observed caused by the probe field itself. The effect is explored analytically and numerically. A scheme is elaborated to demonstrate the SIT experimentally in the alkali vapors at room temperatures.

© (2010) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Citation

Sh. Petrosyan and Yu. Malakyan
"Self-induced suppression of probe absorption in four-level atomic media", Proc. SPIE 7998, International Conference on Laser Physics 2010, 79980X (March 04, 2011); doi:10.1117/12.890875; http://dx.doi.org/10.1117/12.890875


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