Numéro |
J. Phys. II France
Volume 2, Numéro 4, April 1992
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|
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Page(s) | 621 - 629 | |
DOI | https://doi.org/10.1051/jp2:1992151 |
DOI: 10.1051/jp2:1992151
J. Phys. II France 2 (1992) 621-629
1 Laboratoire Aimé Cotton, Bâtiment 505, 91405 Orsay Cedex, France
2 Physics Department, New York University, 4 Washington Place, New york, NY 10003, U.S.A.
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© Les Editions de Physique 1992
J. Phys. II France 2 (1992) 621-629
Interaction of three-level atoms with stochastic fields
M. A. Bouchene1, A. Débarre1, J.-C. Keller1, J.-L Le Gouët1, P. Tchénio1, V. Finkelstein2 and P. R. Berman21 Laboratoire Aimé Cotton, Bâtiment 505, 91405 Orsay Cedex, France
2 Physics Department, New York University, 4 Washington Place, New york, NY 10003, U.S.A.
(Received 30 October 1991, accepted 10 January 1992)
Abstract
Three broadband laser pulses are used to drive transitions between three levels in Sr vapor. A four-wave mixing signal is
monitored as a function of the delay time
t12 between two of the pulses. For sufficiently strong fields, it is found that the signal, as a function of
t12, can possess a dip or a spike which is narrower than the correlation time of the radiation fields. A theoretical interpretation
of the results is presented in terms of the so-called dark resonance.
42.55 - 42.60 - 32.90
© Les Editions de Physique 1992