The effect of phase noise of bichromatic radiation upon resonances of coherent population trapping |
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Authors: | A. N. Matveev A. V. Sokolov A. V. Akimov V. N. Sorokin A. Yu. Samokotin N. N. Kolachevsky |
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Affiliation: | (1) Moscow Institute of Physics and Technology (State University), Institutskii lane 9, 141700 Dolgoprudnyi, Moscow region, Russia |
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Abstract: | We consider the effect of the noise difference phase of a bichromatic field upon coherent population trapping resonances in the simplest three-level system in Λ configuration. The quasi-stationary solution of Bloch optical equations, which was found with some assumptions, shows that the presence of exciting short-correlated fluctuations of the phase of radiation reduces the contrast of the resonance line without affecting its spectral width. For the Gaussian phase noise the contrast suppression factor is χ = exp[?? rms 2 ], where ? rms 2 is phase dispersion. The experimental results obtained earlier by our group are analyzed. |
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