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

Research output: Contribution to journalArticle

37 Citations (Scopus)

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 languageEnglish (US)
Pages (from-to)2263-2265
Number of pages3
JournalApplied Physics Letters
Volume61
Issue number19
DOIs
StatePublished - Dec 1 1992

Fingerprint

benzoic acid
optical properties
protons
harmonic generations
recovery
acids
annealing
coefficients
in situ measurement
degradation
reflectance
harmonics
polarization

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

Cite this

Hsu, Wei Yung ; Willand, Craig S. ; Gopalan, Venkatraman ; Gupta, Mool C. / Effect of proton exchange on the nonlinear optical properties of LiNbO 3 and LiTaO3 . In: Applied Physics Letters. 1992 ; Vol. 61, No. 19. pp. 2263-2265.
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Effect of proton exchange on the nonlinear optical properties of LiNbO 3 and LiTaO3 . / Hsu, Wei Yung; Willand, Craig S.; Gopalan, Venkatraman; Gupta, Mool C.

In: Applied Physics Letters, Vol. 61, No. 19, 01.12.1992, p. 2263-2265.

Research output: Contribution to journalArticle

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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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