Effect of proton exchange on the nonlinear optical properties of LiNbO 3 and LiTaO3

Wei Yung Hsu; Craig S. Willand; Venkatraman Gopalan; Mool C. Gupta

doi:10.1063/1.108259

Effect of proton exchange on the nonlinear optical properties of LiNbO ₃ and LiTaO₃

Wei Yung Hsu, Craig S. Willand, Venkatraman Gopalan, Mool C. Gupta

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Abstract

The effect of proton exchange carried out using benzoic and pyrophosphoric acid on the nonlinear optical coefficient (d) of LiNbO₃ and LiTaO₃ was studied using a second-harmonic generation reflectance technique. Significant degradation in the d coefficient of LiNbO₃ and LiTaO₃ was observed as a result of proton exchange with either benzoic or pyrophosphoric acid under the conditions studied. Some recovery only in the short time proton-exchanged sample (0.5 h at 180°C) of LiNbO ₃ was observed under thermal annealing at 350°C for 1 h. Results of in situ measurement of second-harmonic signal recovery under thermal annealing are reported. Results are also presented on theoretical and experimental variations of second-harmonic generation intensity with an incident polarization angle.

Original language	English (US)
Pages (from-to)	2263-2265
Number of pages	3
Journal	Applied Physics Letters
Volume	61
Issue number	19
DOIs	https://doi.org/10.1063/1.108259
State	Published - 1992

All Science Journal Classification (ASJC) codes

Physics and Astronomy (miscellaneous)

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title = "Effect of proton exchange on the nonlinear optical properties of LiNbO 3 and LiTaO3",

abstract = "The effect of proton exchange carried out using benzoic and pyrophosphoric acid on the nonlinear optical coefficient (d) of LiNbO3 and LiTaO3 was studied using a second-harmonic generation reflectance technique. Significant degradation in the d coefficient of LiNbO3 and LiTaO3 was observed as a result of proton exchange with either benzoic or pyrophosphoric acid under the conditions studied. Some recovery only in the short time proton-exchanged sample (0.5 h at 180°C) of LiNbO 3 was observed under thermal annealing at 350°C for 1 h. Results of in situ measurement of second-harmonic signal recovery under thermal annealing are reported. Results are also presented on theoretical and experimental variations of second-harmonic generation intensity with an incident polarization angle.",

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T1 - Effect of proton exchange on the nonlinear optical properties of LiNbO 3 and LiTaO3

AU - Hsu, Wei Yung

AU - Willand, Craig S.

AU - Gopalan, Venkatraman

AU - Gupta, Mool C.

PY - 1992

Y1 - 1992

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AB - The effect of proton exchange carried out using benzoic and pyrophosphoric acid on the nonlinear optical coefficient (d) of LiNbO3 and LiTaO3 was studied using a second-harmonic generation reflectance technique. Significant degradation in the d coefficient of LiNbO3 and LiTaO3 was observed as a result of proton exchange with either benzoic or pyrophosphoric acid under the conditions studied. Some recovery only in the short time proton-exchanged sample (0.5 h at 180°C) of LiNbO 3 was observed under thermal annealing at 350°C for 1 h. Results of in situ measurement of second-harmonic signal recovery under thermal annealing are reported. Results are also presented on theoretical and experimental variations of second-harmonic generation intensity with an incident polarization angle.

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Effect of proton exchange on the nonlinear optical properties of LiNbO ₃ and LiTaO₃

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