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Control of domain structures in lithium tantalate using interferometric optical patterning

Control of domain structures in lithium tantalate using interferometric optical patterning
Control of domain structures in lithium tantalate using interferometric optical patterning
We report a room temperature technique for periodically inverting the domain structure in a lithium tantalate crystal, via the simultaneous application of optical and electric fields. Ultraviolet light from an Ar ion laser was incident on a 200µm-thick z-cut lithium tantalate crystal, illuminating the y-face which had been polished to form a biprism. The resulting interferometric pattern, formed between planar liquid electrodes applied to the +z and -z-crystal faces, had a period of 6.3µm. We show the results of optical control of the poling process, and discuss the theory behind light-induced ferroelectric switching.
0030-4018
310-316
Brown, Paul T.
87b6c27d-7b1a-4a90-bd00-53cf2daeb37e
Ross, Graeme W.
131c68e3-a31b-41a9-b48a-8d8fa1d44ef7
Eason, Robert W.
e38684c3-d18c-41b9-a4aa-def67283b020
Pogosyan, Armen R.
66f2589a-376a-49d7-8fe1-c6d2e4b23dca
Brown, Paul T.
87b6c27d-7b1a-4a90-bd00-53cf2daeb37e
Ross, Graeme W.
131c68e3-a31b-41a9-b48a-8d8fa1d44ef7
Eason, Robert W.
e38684c3-d18c-41b9-a4aa-def67283b020
Pogosyan, Armen R.
66f2589a-376a-49d7-8fe1-c6d2e4b23dca

Brown, Paul T., Ross, Graeme W., Eason, Robert W. and Pogosyan, Armen R. (1999) Control of domain structures in lithium tantalate using interferometric optical patterning. Optics Communications, 163 (4-6), 310-316. (doi:10.1016/S0030-4018(99)00151-0).

Record type: Article

Abstract

We report a room temperature technique for periodically inverting the domain structure in a lithium tantalate crystal, via the simultaneous application of optical and electric fields. Ultraviolet light from an Ar ion laser was incident on a 200µm-thick z-cut lithium tantalate crystal, illuminating the y-face which had been polished to form a biprism. The resulting interferometric pattern, formed between planar liquid electrodes applied to the +z and -z-crystal faces, had a period of 6.3µm. We show the results of optical control of the poling process, and discuss the theory behind light-induced ferroelectric switching.

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Published date: May 1999

Identifiers

Local EPrints ID: 77824
URI: http://eprints.soton.ac.uk/id/eprint/77824
ISSN: 0030-4018
PURE UUID: 09d1bb18-83ae-4856-948b-6e392443c2ab
ORCID for Robert W. Eason: ORCID iD orcid.org/0000-0001-9704-2204

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Date deposited: 11 Mar 2010
Last modified: 07 Oct 2020 03:04

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Contributors

Author: Paul T. Brown
Author: Graeme W. Ross
Author: Robert W. Eason ORCID iD
Author: Armen R. Pogosyan

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