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Thermal poling of glass modified by femtosecond irradiation

By Costantino Corbari, John D. Mills, Olivier Deparis, Bruce G. Klappauf and Peter G. Kazansky


Thermal poling of silica glass modified by femtosecond laser irradiation is demonstrated. Increase of second-harmonic generation in the irradiated regions is observed. This enhancement is interpreted in terms of structural modifications in silica glass that make the poling process more efficient. Evidence of a change in the distribution of the electrostatic field frozen in glass during poling is obtained. This technique is used for (2) grating fabrication

Topics: QC
Year: 2002
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Provided by: e-Prints Soton

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