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Journal of Applied Spectroscopy

Frequency-Temporal Correlation of Inhomogeneous Broadening for Different Modes of Excitation of Stimulated Photon Echo

Guzel I. Garnaeva, Leonid A. Nefediev, E. N. Ahmedshina, É. I. Khakimzyanova

Published Jan 1, 2015• 2 citations
Publisher
DOI
10.1007/s10812-015-0033-z

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This paper discusses the data-locking efficiency when data is recorded by means of stimulated-photon echo and the dependence of the frequency–time correlation coefficient of inhomogeneous broadening in various regions of the excitation of an inhomogeneously broadened line. It is shown that the rate of change of the correlation coefficient depends on the region of excitation of the inhomogeneously broadened line, as well as on the gradients of the external spatially inhomogeneous electromagnetic fields.
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.