Optical nonlinearity in gamma-ray-irradiated lead-silicate glass

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Abstract

Gamma-ray-irradiated lead-silicate glass shows enhanced photoinduced quasi-phase-matched second-harmonic generation. This is due to the formation of color centers, which serve as traps for space charge, resulting in an internal dc field due to the coherent photovoltaic effect. The color center formation also enhances the χ(3) nonlinearity, which contributes to the photoinduced quasi-phase-matched second-harmonic generation as well. We separate these two contributions and show their respective roles.

Original languageEnglish
Pages (from-to)45-48
Number of pages4
JournalJournal of the Optical Society of America B: Optical Physics
Volume20
Issue number1
DOIs
StatePublished - Jan 2003

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