Interband photorefractive effect in semiconductors with hot-electron transport at arbitrary modulation depth

M Wichtowski, A Ziółkowski - Optics Communications, 2013 - Elsevier
Hot-electron transport in photorefractive semiconductors strongly affects the recording of
photorefractive grating. However, the theoretical description of this behavior has been …

Perturbative approach to space-charge field dynamics in photorefractive semiconductors

M Wichtowski - Journal of Optics, 2012 - iopscience.iop.org
A general perturbative approach to solving photorefractive material equations for a two-
wave mixing geometry is developed. The method allows the study of both stationary and …

Impact of proton implantation parameters on the photoconductivity of photorefractive multiple quantum wells

B Jabłoński, A Branecka, E Miśkiewicz… - Photonics Letters of …, 2015 - photonics.pl
Abstract Semi-insulating GaAs/AlGaAs multiple quantum wells are photorefractive materials
with high sensitivity and a short response time. Semi-insulation of these structures is …

Erasing of an optically induced grating in a semi-insulating multiple quantum well waveguide

E Weinert-Rączka, M Wichtowski - Photonics Letters of Poland, 2012 - photonics.pl
An interaction between optical signal guided in a photorefractive multiple quantum well
planar waveguide and two external waves is considered. The external waves create a …