aqora

On the influence of the resonant level hyperfine structure on the process of information storage by means of photon echo

Igor V. Yevseyev, Решетов Владимир Александрович

Optics CommunicationsAug 1, 19892 citations

Calculation of the stimulated photon echo in three-level and degenerate systems in the presence of external inhomogeneous electric fields

Leonid A. Nefediev, Э. И. Низамова

Journal of Applied SpectroscopyMar 1, 20132 citations

Superradiant Effects in Photon Echo Decays -The Superradiant Echo

Frank C. Spano, W. S. Warren

Springer eBooksJan 1, 19900 citations

Photon echoes in a resonant three-level system with arbitrary level degeneracy

M. Aihara, Humio Inaba

The theoretical analysis on photon echoes is reported in a resonant multi-level system with level degeneracy, by a general consideration. With respect to the system possessing more than three-fold degeneracy, the intensity of photon echoes depends not only on the areas of the exciting optical pulses, but also on their polarization characteristics. In particular, it was found that some anomalous echoes change their intensities with the polarization directions of exciting optical pulses which have different frequencies from those of the echoes because of the coherent coupling of resonant transitions with common energy level and the interference effect of transitions through the degenerate sublevels. In the first half of this paper the general formulation on the multi-level system with arbitrary degeneracy is performed, and in the second half, the application of the general theory to some typical examples is also given.The theoretical analysis on photon echoes is reported in a resonant multi-level system with level degeneracy, by a general consideration. With respect to the system possessing more than three-fold degeneracy, the intensity of photon echoes depends not only on the areas of the exciting optical pulses, but also on their polarization characteristics. In particular, it was found that some anomalous echoes change their intensities with the polarization directions of exciting optical pulses which have different frequencies from those of the echoes because of the coherent coupling of resonant transitions with common energy level and the interference effect of transitions through the degenerate sublevels. In the first half of this paper the general formulation on the multi-level system with arbitrary degeneracy is performed, and in the second half, the application of the general theory to some typical examples is also given.

Journal of Physics A Mathematical Nuclear and GeneralNov 1, 197310 citations

Dependence of the primary and stimulated photon echo intensity on the pulse parameters and the sample temperature

В. В. Самарцев, Ramil G. Usmanov

The possibility and the conditions of primary and stimulated photon echo generation, and its dependence on sample temperature and excited pulse parameters are investigated experimentally and theoretically.

physica status solidi (a)Oct 16, 19782 citations

The Theory of Three-level Photon Echo for Quasi-degenerated Levels

Tara Ahmadi

The three-level photon echo has been described in different works[1,2] by using rotating wave approximation but none of them didnt get re-sults which show the effects of detuning frequencies on frequency of ground level of system; also the effect distance between two generated levels on signal resonance is being neglected. In this work, we stud-ied a-type system theoretically and numerically. By considering the Dopplers effect in environment, we get different equation for polariza-tion of echo signal and its intensity. 1The three-level photon echo has been described in different works[1,2] by using rotating wave approximation but none of them didnt get re-sults which show the effects of detuning frequencies on frequency of ground level of system; also the effect distance between two generated levels on signal resonance is being neglected. In this work, we stud-ied a-type system theoretically and numerically. By considering the Dopplers effect in environment, we get different equation for polariza-tion of echo signal and its intensity. 1

Jan 1, 20140 citations

Photon Echoes and Degeneration of the Resonant Energy Levels

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Photon Echoes and Degeneration of the Resonant Energy Levels

Abstract

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