Optical control of domain structures in strontium barium niobate (SBN)
Ross, Graeme W., Smith, Peter G.R., Brown, Paul T. and Eason, Robert W. (1996) Optical control of domain structures in strontium barium niobate (SBN). In, Materials and Optical Properties. Photorefractive Fiber and Crystal Devices: Materials, Optical Properties, and Applications II Bellingham, US, The International Society for Optical Engineering. (Proceedings of SPIE, 2849). (doi:10.1117/12.255484).
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We investigate the use of combined optical and electrical techniques to control domain formation in ferroelectric SBN, and examine the periodic structures induced by spatially modulating the light intensity through the crystal during the electrical poling process. The role of photoexcited charges in compensating and stabilising the induced domain structures is summarised, and the importance of thermal effects established. The process of domain re-ordering is shown to be particularly sensitive to temperature changes close to a domain freezing point of SBN, which occurs near room temperature. The resulting light-induced domain re-ordering is assessed using current monitoring during the repoling process, and photorefractive two-beam coupling of the resulting structures
|Item Type:||Book Section|
|Subjects:||Q Science > QC Physics
T Technology > TK Electrical engineering. Electronics Nuclear engineering
|Divisions:||University Structure - Pre August 2011 > Optoelectronics Research Centre
|Date Deposited:||11 Mar 2010|
|Last Modified:||27 Mar 2014 18:56|
|RDF:||RDF+N-Triples, RDF+N3, RDF+XML, Browse.|
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