Recording speed and determination of basic materials properties

I Biaggio - Photorefractive Materials and Their Applications 2 …, 2007 - Springer
This chapter presents a discussion of the recording speed in photorefractive materials, the
parameters that influence it under various circumstances of continuous wave and pulsed …

Light intensity dependent Debye screening length in undoped photorefractive titanosillenite crystals

I de Oliveira, J Frejlich - Journal of Applied Physics, 2012 - pubs.aip.org
We report on the experimental evidence of the light intensity dependence of the Debye
screening length ls in undoped photorefractive titanosillenite crystals (⁠ Bi 12 TiO 20⁠) by …

Temporal behavior of the intensity-dependent absorption in photorefractive BaTiO3

A Motes, G Brost, J Rotgé, JJ Kim - Optics letters, 1988 - opg.optica.org
We report measurements of response time for the intensity-dependent absorption in a single
BaTiO_3 crystal under conditions in which no photorefractive effect can be observed. The …

Dark build-up of holograms in BaTiO3 after recording

K Buse, J Frejlich, G Kuper, E Krätzig - Applied Physics A, 1993 - Springer
Holograms recorded under suitable conditions in photorefractive BaTiO 3 exhibit an unusual
dark build-up. The diffraction efficiency increases by some orders of magnitude after the …

Gain and stability in photorefractive two-wave mixing

I de Oliveira, J Frejlich - Physical Review A, 2001 - APS
We demonstrate that the negative amplitude gain in a photorefractive two-wave-mixing
experiment under applied electric field measurably reduces the characteristic instability of …

Reading and optical erasure of holograms stored by the photorefractive effect in lithium niobate

MG Moharam, L Young - Applied Optics, 1978 - opg.optica.org
The reading and optical erasure (on and off the Bragg angle) of holograms stored in lithium
niobate and similar materials by the photorefractive effect have been modeled using …

Evolution and propagation of grating envelopes during erasure in bulk photorefractive media

M Jeganathan, MC Bashaw, L Hesselink - JOSA B, 1995 - opg.optica.org
We present a comprehensive analysis of the evolution of a grating envelope, in both
transmission and reflection geometry, during the erasure process in various readout …

Erase rates in photorefractive materials with two photoactive species

GC Valley - Applied optics, 1983 - opg.optica.org
Erase rates for uniformly illuminated refractive-index gratings are derived for a model of
photorefractivity in which two photoactive ions participate as donors and acceptors. The …

Effect of beam attenuation on photorefractive grating erasure

M Liphardt, A Goonesekera, S Ducharme, JM Takacs… - JOSA B, 1996 - opg.optica.org
We investigate the influence of attenuation on the speed of erasure of photorefractive
gratings by solving the coupled-wave equations in the undepleted pump approximation and …

Photorefractive fixing and related thermal effects in LiNbO3

L Arizmendi, PD Townsend… - Journal of Physics …, 1991 - iopscience.iop.org
The thermal and optical stability of photorefractive holograms written in iron-doped LiNbO 3
have been measured over the temperature range from 50 to 165 degrees C. In each case …