Second harmonic generation and charge relaxation of poled glasses

We measured thermal relaxation of the second order nonlinearity (SON) observed in a thermally-poled soda-lime silicate glass. It is shown that 50-min annealing of the glass at 400°C results in a complete SON degradation. Performed studies of thermo-stimulated depolarization current (TSDC) revealed t...

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Veröffentlicht in:	Journal of physics. Conference series 2019-12, Vol.1410 (1), p.12148
Hauptverfasser:	Reshetov, I V, Kaasik, V P, Lipovskii, A A, Tagantsev, D K
Format:	Artikel
Sprache:	eng
Schlagworte:	Depolarization Glass transition temperature Physics Second harmonic generation Thermal relaxation
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Zusammenfassung:	We measured thermal relaxation of the second order nonlinearity (SON) observed in a thermally-poled soda-lime silicate glass. It is shown that 50-min annealing of the glass at 400°C results in a complete SON degradation. Performed studies of thermo-stimulated depolarization current (TSDC) revealed that the poling-induced spatial electric charge relaxes above the glass transition temperature. This indicates that SON is not induced by this spatial charge.
ISSN:	1742-6588 1742-6596
DOI:	10.1088/1742-6596/1410/1/012148