Electrical Fixing in Lithium Niobate Crystals
Autor: | H. A. Eggert, Benedikt Hecking, F. Kalkum, Karsten Buse |
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Rok vydání: | 2005 |
Předmět: | |
Zdroj: | Scopus-Elsevier |
DOI: | 10.1364/pemd.2005.101 |
Popis: | Elementary holographic gratings are recorded in iron-doped near-stoichiometric lithium niobate crystals in the presence of an external electric field close to the coercive field. The resulting diffraction efficiency ? vanishes upon subsequent homogeneous illumination but can temporarily be revealed by application of an external field well above the coercive field. All results are explained assuming that a ferroelectric domain pattern of only 0.01% modulation degree is created during recording. The process is similar to |
Databáze: | OpenAIRE |
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