Photoreflectance (PR) spectroscopy proved to be very useful for the characterization of
various semiconductor structures [l to 61. In most cases PR can be considered as a …

The correct determination of the spatial phase shift? _p in photorefractive materials is crucial
to the proper characterization of novel materials. It is shown that the grating translation …

Principal and complementary space-charge gratings are formed in photorefractive bismuth
silicon oxide with use of 785-nm light. An electric field is optionally applied in the direction of …

We present measurements of the two-wave mixing gain as a function of frequency detuning
in photorefractive crystals. In many cases, this function is asymmetric, indicating that the …

We report here for the first time, two‐beam coupling energy transfer using the Franz–
Keldysh electrorefractive effect in photorefractive semiconductors. A large beam coupling …

The structure and dynamics of the four-wave mixing transmission grating in a photorefractive
crystal were investigated. The steady-state grating s amplitude distribution looks like a …

The optical modulation technique of photoreflectance (PR) has been applied to the
characterization of GaAs/AlGaAs thin films, multiple quantum wells (MQW) and modulation …

Even though the Kukhtarev model [Sov. Tech. Phys. Lett. 2, 438 (1976); Sov. Phys. Solid
State 1 6, 2414 (1975); Ferroelectrics 2 2, 949 (1979); Sov. J. Quantum Electron. 8, 231 …

For most regimes descriptions of photorefractive behavior by electron–hole transport with a
single species of impurity levels and by electron–hole transport with two species of impurity …