1 January 1998 Holographic recording in a system with annihilating centers: relaxation and suppression of transmission fluctuations of transient gratings
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Abstract
The holographic record of gratings on excited triplet (T) annihilating centers in rigid mediums is proposed. The annihilation stage of the reaction T + T yields 0 is visualized by measuring of the diffraction picture dynamics. It has been found theoretically that the second range diffraction maximum is appear in consequence of the nonsinusoidal grating form. The analytical expressions for the intensity of first and second range diffraction maximum are obtained. The fluctuations of the transient grating transmission, (tau) A, in a porous medium are investigated. The drastic decrease in the disperse (delta) (tau) A is observed for the system with annihilating excited triplet centers. Two species of the reaction mechanism are studied: static and diffusion--accelerated annihilation. In the second case the reduction of (delta) (tau) A was greater. The squeezed fluctuations effect induced by additional laser pulse is discussed.
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Michael G. Kucherenko, "Holographic recording in a system with annihilating centers: relaxation and suppression of transmission fluctuations of transient gratings", Proc. SPIE 3347, Optical Information Science and Technology (OIST97): Optical Recording Mechanisms and Media, (1 January 1998); doi: 10.1117/12.301426; https://doi.org/10.1117/12.301426
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