Electrical Fixing in Lithium Niobate Crystals

Autor: H. A. Eggert, Benedikt Hecking, F. Kalkum, Karsten Buse
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