This article aims to review the panoply of techniques for realising optical imaging through
turbid media such as biological tissue. It begins by briefly discussing optical scattering and …

This review covers a spectrum of optoelectronic properties of and uses for semi-insulating
semiconductor heterostructures and thin films, including epilayers and quantum wells …

The Al x Ga 1− x As/GaAs heterostructure system is potentially of great importance for many
high-speed electronics and optoelectronic devices, because the lattice parameter difference …

Photorefractive materials combine photoconductive and electro-optic properties: light affects
their electrical conductivity; their optical properties (refractive index, etc.) are affected by …

Liquid crystalline composite materials have been prepared that are strongly photorefractive.
Nematic liquid crystals were doped with both electron donor and electron acceptor …

The main suggestions in practical applications of dynamic photorefractive holographic
recording for interferometry, processing of 2D pictures, operations with laser beams, and …

▪ Abstract A review of the field of photorefractive liquid crystals is presented. The first reports
of photorefractive liquid crystals occurred in 1994, and the performance of these materials …

The photorefractive transport models that include hot-electron transport nonlinearities in the
photorefractive transport equations introduce a new phase-shift mechanism that explains the …

We demonstrate a laser-based adaptive ultrasonic homodyne receiver using dynamic
holography in AlGaAs/GaAs photorefractive multiple quantum wells. The dynamic hologram …

Near-ultraviolet light induces band-to-band electron transitions and is used to record
interband photorefractive gratings in undoped KNbO 3. The high absorption constant in the …