Ferroelectric Domain Gratings in Strontium Barium Niobate Induced by Photorefractive Space Charge Fields
- 22 August 1994
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 73 (8) , 1174-1177
- https://doi.org/10.1103/physrevlett.73.1174
Abstract
We demonstrate that illuminating a photoconducting strontium barium niobate crystal with a low intensity optical standing wave generates space charge fields which induce ferroelectric domain gratings. We study the formation and decay kinetics of these domain gratings using a short exposure technique and present a thermodynamic model of the fixing mechanism.Keywords
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