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Second-harmonic generation in highly textured LiNbO3 films prepared by pulsed laser deposition

Second-harmonic generation in highly textured LiNbO3 films prepared by pulsed laser deposition
Second-harmonic generation in highly textured LiNbO3 films prepared by pulsed laser deposition
LiNbO3 films have been deposited on (001) sapphire substrates by pulsed laser deposition, in an oxygen environment. Films grown at substrate temperatures of 650 °C are crystalline, strongly textured, and show a degree of twining that is lower the higher the oxygen pressure is in the range of 0.5–1 Torr. Values of the nonlinear optical coefficients d33 and d31 of the films, measured via second-harmonic generation, are close to those for the bulk LiNbO3 single crystal. The dependence of both the degree of twining and the nonlinear optical response on the film thickness suggests that the films become closer to single domain for larger thickness.
0021-8979
3768-3770
Chaos, J.A.
a9ba19e9-dacf-47ae-b284-bd77944dd88e
Pruneri, V.
0e97eb94-b682-409f-a107-ae6b84763f02
Gonzalo, J.
25fd9627-b2f7-41a2-b9f0-c9f8ebdfad16
Afonso, C.N.
57bbb690-e142-4721-8f39-7ff22be19573
Chaos, J.A.
a9ba19e9-dacf-47ae-b284-bd77944dd88e
Pruneri, V.
0e97eb94-b682-409f-a107-ae6b84763f02
Gonzalo, J.
25fd9627-b2f7-41a2-b9f0-c9f8ebdfad16
Afonso, C.N.
57bbb690-e142-4721-8f39-7ff22be19573

Chaos, J.A., Pruneri, V., Gonzalo, J. and Afonso, C.N. (2000) Second-harmonic generation in highly textured LiNbO3 films prepared by pulsed laser deposition. Journal of Applied Physics, 88 (6), 3768-3770. (doi:10.1063/1.1289070).

Record type: Article

Abstract

LiNbO3 films have been deposited on (001) sapphire substrates by pulsed laser deposition, in an oxygen environment. Films grown at substrate temperatures of 650 °C are crystalline, strongly textured, and show a degree of twining that is lower the higher the oxygen pressure is in the range of 0.5–1 Torr. Values of the nonlinear optical coefficients d33 and d31 of the films, measured via second-harmonic generation, are close to those for the bulk LiNbO3 single crystal. The dependence of both the degree of twining and the nonlinear optical response on the film thickness suggests that the films become closer to single domain for larger thickness.

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Published date: 2000

Identifiers

Local EPrints ID: 13638
URI: http://eprints.soton.ac.uk/id/eprint/13638
ISSN: 0021-8979
PURE UUID: c095408a-3456-4109-adae-3e7e2086f474

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Date deposited: 01 Jan 2005
Last modified: 09 Jan 2019 17:34

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