Off-Bragg-angle light diffraction and structure of dynamic interband photorefractive gratings

P Bernasconi, G Montemezzani, P Günter - Applied Physics B, 1999 - Springer
Steady-state and time-resolved off-Bragg-angle diffraction experiments are used to
determine the structure and the dynamics of photorefractive gratings induced by interband …

Near-infrared four-wave mixing with gain and self-starting oscillators with photorefractive GaAs

H Rajbenbach, B Imbert, JP Huignard, S Mallick - Optics letters, 1989 - opg.optica.org
We report high-reflectivity four-wave mixing in photorefractive GaAs: Cr crystals at 1.06 μm
using a nearly degenerate interaction with an externally applied dc electric field (moving …

Model for resonant intensity dependence of photorefractive two-wave mixing in InP: Fe

G Picoli, P Gravey, C Ozkul - Optics letters, 1989 - opg.optica.org
We present a new model, which incorporates both temperature and electron–hole effects, for
two-beam coupling in photorefractive semiconductors under an external dc field E_0. We …

Image transfer in photorefractive GaAs

LJ Cheng, G Gheen, MF Rau, FC Wang - Journal of applied physics, 1987 - pubs.aip.org
It has been demonstratedI-4 that GaAs is a sensitive photorefractive material with the
potential to be used for optical processing in the infrared region. The advantages of using …

Photorefractive materials and their applications in optical image processing

PD Foote, TJ Hall, NB Aldridge, AG Lvenston - IEE Proceedings J …, 1986 - IET
A brief review of a band transport model for the photorefractive effect is given. Distinction is
made between the influence of intrinsic material dependent parameters and externally …

Photoreflectance characterization of semiconductors and semiconductor heterostructures

FH Pollak, H Shen - Journal of Electronic Materials, 1990 - Springer
The electromodulation method of photoreflectance (PR) is becoming an important tool for
the characterization of semiconductors, semiconductor interfaces and semiconductor …

Coupling modulation in photorefractive materials by applying ac electric fields

C Stace, AK Powell, K Walsh, TJ Hall - Optics communications, 1989 - Elsevier
In general, the application of an electric field to a photorefractive material with optical activity
results in a change in the effective electro-optic coefficient, r eff, which, in turn, alters the …

Mobility‐lifetime product of photoexcited electrons in GaAs

GC Valley, H Rajbenbach… - Applied physics letters, 1990 - pubs.aip.org
We show that photorefractive beam coupling gain as a function of grating period measured
in semi‐insulating GaAs with an external ac electric field or with a dc field and moving …

High-frequency resonances in photorefractive crystals

A Grunnet-Jepsen, I Aubrecht, L Solymar - Optics letters, 1995 - opg.optica.org
High-frequency resonances in photorefractive crystals clickable element to expand a topic
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Holographic recording in photorefractive crystals with simultaneous electron‐hole transport and two active centers

S Zhivkova, M Miteva - Journal of applied physics, 1990 - pubs.aip.org
A theoretical model of the formation and behavior of holographic gratings in photorefractive
crystals, based on the assumption of two types of active centers being involved and …