Short-time kinetics of photorefractive gratings recorded under active phase control: an experimental method to materials characterization

AA Freschi, FS De Vicente - Applied Physics B, 2020 - Springer
The initial speed of photorefractive recording and erasure is investigated in two-wave mixing
experiments under carefully controlled grating phase shifts. Results are reported for the full 2 …

Effects of light phase-shifts on photorefractive kinetics: Computer simulations

M Aguilar, E Serrano, V López, M Carrascosa… - Optical Materials, 1995 - Elsevier
The effect of an imposed step-like phase-shift of the light fringes on the recording and
erasure kinetics of photorefractive gratings has been theoretically investigated for an …

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 …

Photorefractive grating dynamics in Bi12SiO20 using optical pulses

JG Murillo - Optics communications, 1999 - Elsevier
A numerical simulation of the photorefractive grating dynamics using high intensity pulses of
nanosecond length and under an external electric field has been made. The band transport …

Effect of light phase-shifts on photorefractive kinetics: linear regime

M Aguilar, E Serrano, V López, M Carrascosa… - European Materials …, 1995 - Elsevier
A shift of the light intensity fringes (after reaching saturation) can have different influences
upon the subsequent recording kinetics. This effect has been investigated within the …

Recording and erasure kinetics in photorefractive materials at large modulation depths

E Serrano, V López, M Carrascosa, F Agulló-López - JOSA B, 1994 - opg.optica.org
A numerical approach has been developed for simulating the recording and erasure kinetics
in photorefractive materials for high modulation of the light-intensity pattern. The recording …

Degenerate parametric amplification in photorefractive media: theoretical analysis

HC Pedersen, PM Johansen - JOSA B, 1996 - opg.optica.org
We present for the first time, to our knowledge, a theoretical analysis of the nonlinear
dynamic space-charge field buildup when a photorefractive medium is exposed …

Measurement of the photorefractive phase shift by polarization interferometry

RK Ing, JP Monchalin - Optics letters, 1993 - opg.optica.org
We present a new approach to measure the phase shift between the photorefractive grating
and the interference pattern in two-wave-mixing experiments. This approach is based on …

Light-induced dynamic gratings and photorefraction

HJ Eichler, A Hermerschmidt - … Materials and Their Applications 1: Basic …, 2006 - Springer
2.5 Conclusions Dynamic gratings can be induced by interfering laser beams in almost any
optical material. Some selected works related to laser-induced gratings have been used as …

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 …