Magneto-optical resonances in the field of counterpropagating waves |
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| Authors: | S A Zibrov Ya O Dudin A G Radnaev V V Vassiliev V L Velichansky D V Brazhnikov A V Ta?chenachev V I Yudin |
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| Institution: | (1) Lebedev Physical Institute, Russian Academy of Sciences, Leninskiĭ pr. 53, Moscow, 117924, Russia;(2) Moscow Engineering Physics Institute (State University), Kashirskoe sh. 31, Moscow, 115409, Russia;(3) Institute of Laser Physics, Siberian Division, Russian Academy of Sciences, pr. Lavrent’eva 13/3, Novosibirsk, 630090, Russia;(4) Novosibirsk State University, ul. Pirogova 2, Novosibirsk, 630090, Russia |
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| Abstract: | The resonance of the intersection of sublevels in a probe laser field resonant to the cyclic transition corresponding to the D 2 87Rb line has been investigated in a zero magnetic field. The strong effect of an additional laser field acting on the adjacent transition has been revealed. In a cell without the buffer gas and antirelaxation coating, the amplitude of the probe-field absorption resonance can increase by more than an order of magnitude in the presence of a counterpropagating wave. The effect is observed at the laser frequency tuned to the cross resonance, when the counterpropagating waves simultaneously act on moving atoms at the cyclic and open transitions with the common lower level. The theoretical analysis of the effect of the additional field on the electromagnetically induced absorption resonance is in agreement with the experimental data. |
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