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Heat “superemission” and nucleation-front propagation under laser-induced crystallization of thin amorphous films

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Abstract

The laser-induced solid-state explosive nucleation in amorphous media is studied analytically. The shapes of the temperature switching wave and that of the nucleation front as well as the formula for the front velocity are derived considering also self-consistent medium deformation. Two conditions of explosive nucleation reflecting the roles of latent heat emission and of deformation are formulated. It is shown that, in explosive nucleation, the rate of internal heat emission is proportional to the square of the latent crystallization heat (“superemission”) in analogy to photon superradiance in initially inverted two-level atomic systems.

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Authors and Affiliations

  1. Laser Center, Physics Faculty, Moscow State University, 119899, Moscow, Russia

    V. I. Emel'yanov & I. M. Panin

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  1. V. I. Emel'yanov
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  2. I. M. Panin
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Emel'yanov, V.I., Panin, I.M. Heat “superemission” and nucleation-front propagation under laser-induced crystallization of thin amorphous films. Appl. Phys. A 57, 561–566 (1993). https://doi.org/10.1007/BF00331759

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  • DOI: https://doi.org/10.1007/BF00331759

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