Resonance running hologram velocity nonlinearity dependence upon light intensity in photorefractive crystals

I de Oliveira, JF Carvalho, J Frejlich - Applied Physics Letters, 2013 - pubs.aip.org
We report on the nonlinear relation between the resonance hologram velocity and the
recording light irradiance in fringe-locked running hologram experiments carried out on a …

Speed and diffraction efficiency in feedback-controlled running holograms for photorefractive crystal characterization

MC Barbosa, L Mosquera, J Frejlich - Applied Physics B, 2001 - Springer
We report the measurement of the diffusion length, the Debye screening length and the
quantum efficiency of photoelectron generation in strongly light absorbing photorefractive Bi …

Feedback-controlled running holograms in strongly absorbing photorefractive materials

J Frejlich, AA Freschi, PM Garcia, E Shamonina… - JOSA B, 2000 - opg.optica.org
We propose a mathematical model for the movement in absorbing materials of
photorefractive holograms under feedback constraints. We use this model to analyze the …

Photorefractive fringe-locked running hologram analysis in three-dimensional space

MC Barbosa, J Frejlich - Journal of Optics A: Pure and Applied …, 2003 - iopscience.iop.org
We report a new procedure allowing one to use fringe-locked running hologram
experiments to characterize photorefractive materials in a very simple, reliable and direct …

Photorefractive materials characterization using feedback-controlled running hologram

MC Barbosa, J Frejlich - Photorefractive Effects, Materials, and …, 2003 - opg.optica.org
We report a new procedure allowing one to use fringe-locked running hologram
experiments to characterize photorefractive materials in a very simple, reliable and direct …

Photorefractive running hologram for materials characterization

I de Oliveira, J Frejlich - JOSA B, 2001 - opg.optica.org
We report a theoretical model for a photorefractive running hologram in bulk-absorbing
materials in the presence of self-diffraction and use this model to analyze experiments for …

An improved procedure for fringe-locked photorefractive running hologram data processing

Á Salazar, H Lorduy, R Montenegro… - Journal of Optics A …, 2009 - iopscience.iop.org
We report a new improved procedure for experimental data fitting in photorefractive fringe-
locked running hologram experiments. From this fitting we compute the diffusion length LD …

Charge–carrier diffusion length in photorefractive crystals computed from the initial hologram phase shift

AA Freschi, PM Garcia, J Frejlich - Applied physics letters, 1997 - pubs.aip.org
The phase shift between the pattern of light onto a photorefractive crystal and the resulting
hologram at the very beginning of the recording process in two-wave mixing is analyzed and …

Adaptive fringe-locked running hologram in photorefractive crystals

J Frejlich, PM Garcia, L Cescato - Optics letters, 1989 - opg.optica.org
We have recorded running holograms in a photorefractive crystal with an applied electric
field, using a 90° phase-shift fringe-locked interference pattern of light. This method provides …

Dynamics of hologram readout in photorefractive crystals for broken Bragg-condition

J Goltz, C Denz, T Tschudi - Optics communications, 1988 - Elsevier
"'~ index/grating Page 1 Volume 68, number 3 OPTICS COMMUNICATIONS 1 October 1988
DYNAMICS OF HOLOGRAM READOUT IN PHOTOREFRACTIVE CRYSTALS FOR BROKEN …