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

Yuval Isbi; Shmuel Sternklar; Er'el Granot

doi:10.1364/JOSAB.20.000045

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

Department of Electrical and Electronics Engineering

Research output: Contribution to journal › Article › peer-review

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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 language	English
Pages (from-to)	45-48
Number of pages	4
Journal	Journal of the Optical Society of America B: Optical Physics
Volume	20
Issue number	1
DOIs	https://doi.org/10.1364/JOSAB.20.000045
State	Published - Jan 2003

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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.",

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AB - 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.

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

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