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Филология и культура

Многоканальная запись информации при эффекте "запирания" сигналов фотонного эха

Гарнаева Гузель Ильдаровна, L. A. Nefedev, Хасанова Ляйсан

Published Jan 1, 2008• 0 citations
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Abstract

The effect of locking of a long-lived photon echo is investigated in the case where non resonant laser ra-diation (traveling wave with an artificially created spatial inhomogeneity) serves as an inhomogeneous external perturbation, which results in random shifts or splitting of the initial monochromatic components of the inhomogeneously broadened line.

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Lenar Minnekhanovich Mukhametshin, L. A. Nefedev, Низамова Эльмира Ильгамовна

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

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Efficiency of Locking of a Long-Living Photon-Echo Response in the Presence of External Nonresonant Laser Pulses with Different Spatial Inhomogeneity

Guzel I. Garnaeva, Leonid A. Nefediev, É. I. Khakimzyanova

Journal of Russian Laser Research•Jul 1, 2013•0 citations
The effect of locking of a long-lived photon echo is investigated in the case where non resonant laser ra-diation (traveling wave with an artificially created spatial inhomogeneity) serves as an inhomogeneous external perturbation, which results in random shifts or splitting of the initial monochromatic components of the inhomogeneously broadened line.
The effect of locking of a long-lived photon echo is investigated in the case where nonresonant laser radiation (a standing or traveling wave with an artificially created spatial inhomogeneity) serves as an inhomogeneous external perturbation, which results in random shifts or splitting of the initial monochromatic components of the inhomogeneously broadened line. The use of the mutual spatial orientation of the gradients of electric fields as an associative key of access to recorded information allows one to produce a large number of independent channels of data recording. It is demonstrated that the proposed scheme for recording and associative sampling of information has the advantage that, in each channel, information is recorded simultaneously at all optical centers (the whole inhomogeneously broadened resonance line), which does not decrease the intensity of the response from each channel. Moreover, the echo holographic information coded in the wavefronts of the exciting pulses can also be recorded in each channel, which does not affect the independence of individual channels of data recording.
The correlation of the inhomogeneous broadening of the resonance transition at different time intervals and the efficiency of long-lived photon echo response locking by the action of standing waves of non-resonant laser pulses are considered.It is shown that the long-lived photon echo response locking effect may be observed even at the angles of the relative orientation of the non-resonant standing wave laser pulses of less than one degree, due to the change in the correlation coefficient of inhomogeneous broadening at time intervals between the first and the second and after the third resonant laser pulses.