Stabilized photorefractive running holograms, with arbitrarily selected phase shift, for material characterization
I de Oliveira, AA Freschi, I Fier, J Frejlich - Optical Materials Express, 2012 - opg.optica.org
We report on the recording of stabilized running holograms in photorefractive materials with
arbitrarily selected phase shift φ between the transmitted and difracted beams propagating …
arbitrarily selected phase shift φ between the transmitted and difracted beams propagating …
Combined excitation of running space charge and conductivity gratings in photorefractive crystals
M Bryushinin, V Kulikov, I Sokolov - Physical Review B—Condensed Matter …, 2005 - APS
We report the simultaneous combined excitation of the space charge and photoconductivity
gratings in photorefractive Bi 12 Si O 20 and Bi 12 Ti O 20 crystals. The experiments are …
gratings in photorefractive Bi 12 Si O 20 and Bi 12 Ti O 20 crystals. The experiments are …
Oscillating holograms recorded in photorefractive crystals by a frequency detuned feedback loop
AA Freschi, ACC Telles, J Frejlich… - Journal of Applied …, 2009 - pubs.aip.org
We report an optoelectronic feedback loop suitable for generating noise-free interference
patterns oscillating at arbitrary waveforms. The technique allows controlling the frequency …
patterns oscillating at arbitrary waveforms. The technique allows controlling the frequency …
Simultaneous excitation of the low and high frequency oscillations of the space charge gratings in photorefractive crystals
M Bryushinin, V Kulikov… - ICO20: Optical Information …, 2006 - spiedigitallibrary.org
We study the effect of simultaneous excitation of the space charge and conductivity running
gratings in photorefractive crystals. For the realization of such regime we illuminate the …
gratings in photorefractive crystals. For the realization of such regime we illuminate the …