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Proceedings Paper

Laser-induced diffusion and second-harmonic generation in glasses
Author(s): Valerii P. Aksenov
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Paper Abstract

Ferroelectrical phase transition, induced by laser nonthermal action, has been observed and studied in Ge-doped quartz. Optical second harmonic generation (SHG) is used to study the tensor of the nonlinear susceptibility that reflects the symmetry of the ferroelectrical phase. The maximum value of the tensor component calculated from the experimental data is equal to 2 10-12 m V-1. The increased dielectric constant of new phase has been also observed. The direction of the laser induced anisotropy has been determined by the laser pulse polarization. The effect of the laser-induced diffusion of impurities in transparent dielectrics has been described in cases of Ge and W.

Paper Details

Date Published: 1 December 1991
PDF: 7 pages
Proc. SPIE 1440, Optical Radiation Interaction with Matter, (1 December 1991); doi: 10.1117/12.48173
Show Author Affiliations
Valerii P. Aksenov, P.N. Leered Physical Institute (Russia)


Published in SPIE Proceedings Vol. 1440:
Optical Radiation Interaction with Matter

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