Laser-induced diffusion and second-harmonic generation in glasses

Valerii P. Aksenov

doi:10.1117/12.48173

1 December 1991 Laser-induced diffusion and second-harmonic generation in glasses

Valerii P. Aksenov

Proceedings Volume 1440, Optical Radiation Interaction with Matter; (1991) https://doi.org/10.1117/12.48173
Event: Optical Radiation Interaction with Matter, 1990, Leningrad, Russian Federation

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.

Citation Download Citation

Valerii P. Aksenov "Laser-induced diffusion and second-harmonic generation in glasses", Proc. SPIE 1440, Optical Radiation Interaction with Matter, (1 December 1991); https://doi.org/10.1117/12.48173

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