Anisotropic focusing characteristics of micro-domain structures within crystalline Sr0.61Ba0.39Nb2O6 : the crystal ball
Anisotropic focusing characteristics of micro-domain structures within crystalline Sr0.61Ba0.39Nb2O6 : the crystal ball
We report the anisotropic focusing characteristics of a spherically configured region of micro-domains that have been induced within a cubic shaped crystal of Ce:doped Sr0.61Ba0.39Nb2O6. The internal spherical structure focuses extraordinary polarised light, but not ordinary polarised. The spherical region, which is easily observed via scattering, is formed as the crystal cools down, after a repoling cycle through the Curie temperature, with an applied field. Analytic modelling of the thermal gradients that exist within the crystal during cooling reveals a small (< 1°) temperature difference between the central and outside regions. The similarity in shape between these temperature profiles and the observed scattering region suggests a possible mechanism for the growth of this spherical micro-domained structure.
5383-5387
Smith, Peter G.R.
8979668a-8b7a-4838-9a74-1a7cfc6665f6
Ross, Graeme W.
131c68e3-a31b-41a9-b48a-8d8fa1d44ef7
Brown, Paul T.
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Eason, Robert W.
e38684c3-d18c-41b9-a4aa-def67283b020
Daniell, Geoffrey J.
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1997
Smith, Peter G.R.
8979668a-8b7a-4838-9a74-1a7cfc6665f6
Ross, Graeme W.
131c68e3-a31b-41a9-b48a-8d8fa1d44ef7
Brown, Paul T.
87b6c27d-7b1a-4a90-bd00-53cf2daeb37e
Eason, Robert W.
e38684c3-d18c-41b9-a4aa-def67283b020
Daniell, Geoffrey J.
82c59eea-5002-4889-8823-2c6e5b3288d3
Smith, Peter G.R., Ross, Graeme W., Brown, Paul T., Eason, Robert W. and Daniell, Geoffrey J.
(1997)
Anisotropic focusing characteristics of micro-domain structures within crystalline Sr0.61Ba0.39Nb2O6 : the crystal ball.
Applied Optics, 36 (22), .
(doi:10.1364/AO.36.005383).
Abstract
We report the anisotropic focusing characteristics of a spherically configured region of micro-domains that have been induced within a cubic shaped crystal of Ce:doped Sr0.61Ba0.39Nb2O6. The internal spherical structure focuses extraordinary polarised light, but not ordinary polarised. The spherical region, which is easily observed via scattering, is formed as the crystal cools down, after a repoling cycle through the Curie temperature, with an applied field. Analytic modelling of the thermal gradients that exist within the crystal during cooling reveals a small (< 1°) temperature difference between the central and outside regions. The similarity in shape between these temperature profiles and the observed scattering region suggests a possible mechanism for the growth of this spherical micro-domained structure.
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Published date: 1997
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Local EPrints ID: 78022
URI: http://eprints.soton.ac.uk/id/eprint/78022
ISSN: 0003-6935
PURE UUID: 837e597f-2a4b-4048-b27b-cd8b44543992
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Date deposited: 11 Mar 2010
Last modified: 14 Mar 2024 02:38
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Author:
Peter G.R. Smith
Author:
Graeme W. Ross
Author:
Paul T. Brown
Author:
Robert W. Eason
Author:
Geoffrey J. Daniell
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