Spatial and temporal characteristics of electrically fixed holograms in photorefractive strontium-barium niobate | Zendy

Sergei S. Orlov | Zendy; Demetri Psaltis | Zendy; Ratnakar R. Neurgaonkar | Zendy

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Spatial and temporal characteristics of electrically fixed holograms in photorefractive strontium-barium niobate

Author(s) -

Sergei S. Orlov,

Demetri Psaltis,

Ratnakar R. Neurgaonkar

Publication year - 1994

Publication title -

applied physics letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.182

H-Index - 442

eISSN - 1077-3118

pISSN - 0003-6951

DOI - 10.1063/1.111026

Subject(s) - strontium barium niobate , photorefractive effect , holography , diffraction efficiency , grating , polarization (electrochemistry) , optics , materials science , diffraction , optoelectronics , ferroelectricity , physics , dielectric , chemistry

We report measurements of the holographic diffraction efficiency (HDE) of single photorefractive gratings fixed by an externally applied voltage pulse in Sr0.75Ba0.25Nb2O6. The polarization grating HDE and decay rate are strongly dependent on the grating spacing and also depend on the intensity of the light beams during the recording and erasing/reconstruction process. Knowledge of the dependence of the fixing process on spatial frequency may be useful for the creation of physical models of local polarization switching in ferroelectrics.

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