A SIGNIFICANT fraction of the computer memory industry is at present involved in the
manufacture of non-volatile memory devices1—that is, devices which retain information …

ADVANCES in the field of optical computing1–3 will require the development of materials
that combine a large nonlinear optical response with a fast response time. For many …

The strength, formation, and decay of photorefractive and free-carrier gratings written in
GaAs by 43-ps pulses at a wavelength of 1 mu m are investigated using picosecond-time …

The photorefractive effect in semi‐insulating Cr‐doped GaAs as measured by the beam
coupling technique was investigated as functions of temperature (295–386 K) and intensity …

We report the first observation to our knowledge of the photorefractive effect on picosecond
time scales. Photorefractive beam coupling in GaAs with picosecond, 1.06-μm pulses is …

An updatable optical correlator which uses a photorefractive compound semiconductor to
generate real-time matched filters is proposed. Using compound semiconductors offers high …

The photorefractive effect combined with standard Hall measurements is used to determine
photoionization and recombination cross sections and deep‐level number densities in a …

We report experimental results on the photorefractive properties of chrome-doped GaAs.
Grating-formation time and the behavior of the two-beam-coupling gain as a function of …

The photorefractive effect in undoped semi-insulating GaP was observed. GaP has a
photorefractive sensitivity in the spectral region of 0.6 to 0.9 μm. The photorefractive center is …

Three image processing experiments were performed by degenerate four‐wave mixing in
photorefractive GaAs. The experiments were imaging by phase conjugation, edge …