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Филология и культура

Корреляция неоднородного уширения и запирание откликов стимулированного фотонного эха в трехуровневой резонансной среде

L. A. Nefedev, Э. И. Низамова

Published Jan 1, 2007• 0 citations
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Abstract

The correlation of inhomogeneous broadening and the efficiency of locking of stimulated photon echo signals in the three-level resonance medium is investigated. It is shown, that relative intensity of the photon echo signals essentially depends on the size of factor of inhomogeneous broadening correlation on different frequency transitions.

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The correlation of inhomogeneous broadening and the efficiency of locking of stimulated photon echo signals in the three-level resonance medium is investigated. It is shown, that relative intensity of the photon echo signals essentially depends on the size of factor of inhomogeneous broadening correlation on different frequency transitions.
The frequency–time correlation of inhomogeneous broadening on different transitions in a threelevel resonant medium in the presence of external spatially nonuniform electric fields is considered. It is shown that, under a certain relationship between the magnitudes of gradients of external nonuniform electric fields acting at different moments of time, it is possible to control the magnitude of the frequency–time correlation on different frequency transitions. An increase in the frequency–time correlation coefficient with certain strengths of external spatially nonuniform electric fields leads to the recovery of the phase memory of the system and an increase in the stimulated photon echo intensity.
The formation of responses of stimulated photon echo and the efficiency of data locking under the action of a spatially inhomogeneous electric field on a resonance medium are analyzed. It is shown that the action of a spatially inhomogeneous electric field on a resonance medium between the first and second excitation laser pulses leads to the reversible destruction of the phase memory of the medium, which manifests itself in a change in the time-frequency correlation of inhomogeneous broadening. The possibility of controlling the efficiency of data locking by varying the gradient of an external nonuniform electric field is considered.