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Phys. Rev. A 68, 063801 (2003) [7 pages]

Nonlinear optics via double dark resonances

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S. F. Yelin1,2, V. A. Sautenkov2,3, M. M. Kash4,3, G. R. Welch3, and M. D. Lukin5
1Department of Physics, University of Connecticut, Storrs, Connecticut 06269, USA
2Lebedev Physics Institute, Moscow 117924, Russia
3Department of Physics, Texas A&M University, College Station, Texas 77843, USA
4Department of Physics, Lake Forest College, Lake Forest, Illinois 60045, USA
5Department of Physics, Harvard University, Cambridge, Massachusetts 02138, USA

Received 20 June 2003; published 2 December 2003

Double dark resonances originate from a coherent perturbation of a system displaying electromagnetically induced transparency. We experimentally show and theoretically confirm that this leads to the possibility of extremely sharp resonances prevailing even in the presence of considerable Doppler broadening. A gas of 87Rb atoms is subjected to a strong drive laser and a weak probe laser and a radio frequency field, where the magnetic coupling between the Zeeman levels leads to nonlinear generation of a comb of sidebands.

© 2003 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevA.68.063801
DOI:
10.1103/PhysRevA.68.063801
PACS:
42.50.Gy
 
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