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Proceedings Paper

Roughening phase transition and surface local field increase under the action of powerful laser radiation on solids
Author(s): Vladimir I. Emel'yanov; V. A. Fedotov
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Paper Abstract

It is shown that a high concentration of laser-induced point defects (interstitials, vacancies), interacting with each other through deformation field, phase transition with formation of nanometer periodic Defect-Deformational- structure occurs, accompanied by appearance of modulation of the surface relief. The shape, period and amplitude of relief modulation are determined as functions of defect concentration. It is shown that the local field factor at metal surface undergoes resonance increase (102 times) under scanning of the temperature in vicinity of roughening transition point lying just below the melting point.

Paper Details

Date Published: 15 March 1999
PDF: 10 pages
Proc. SPIE 3734, ICONO '98: Fundamental Aspects of Laser-Matter Interaction and New Nonlinear Optical Materials and Physics of Low-Dimensional Structures, (15 March 1999); doi: 10.1117/12.342364
Show Author Affiliations
Vladimir I. Emel'yanov, M.V. Lomonosov Moscow State Univ. (Russia)
V. A. Fedotov, M.V. Lomonosov Moscow State Univ. (Russia)


Published in SPIE Proceedings Vol. 3734:
ICONO '98: Fundamental Aspects of Laser-Matter Interaction and New Nonlinear Optical Materials and Physics of Low-Dimensional Structures
Konstantin N. Drabovich; V. I. Emelyanova; Vladimir A. Makarov, Editor(s)

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