SPATIAL AND TEMPORAL CHARACTERISTICS OF ELECTRICALLY FIXED HOLOGRAMS IN PHOTOREFRACTIVE STRONTIUM-BARIUM NIOBATE

Authors
ORLOV S PSALTIS D NEURGAONKAR RR
Citation
S. Orlov et al., SPATIAL AND TEMPORAL CHARACTERISTICS OF ELECTRICALLY FIXED HOLOGRAMS IN PHOTOREFRACTIVE STRONTIUM-BARIUM NIOBATE, Applied physics letters, 64(7), 1994, pp. 824-826
Citations number
15
Categorie Soggetti
Physics, Applied
Journal title
Applied physics letters → ACNP
ISSN journal
00036951
Volume
64
Issue
7
Year of publication
1994
Pages
824 - 826
Database
ISI
SICI code
0003-6951(1994)64:7<824:SATCOE>2.0.ZU;2-O
Abstract
We report measurements of the holographic diffraction efficiency (HDE) of single photorefractive gratings fixed by an externally applied vol tage pulse in Sr0.75Ba0.25Nb2O6. The polarization grating HDE and deca y rate are strongly dependent on the grating spacing and also depend o n the intensity of the light beams during the recording and erasing/re construction process. Knowledge of the dependence of the fixing proces s on spatial frequency may be useful for the creation of physical mode ls of local polarization switching in ferroelectrics.