Two mutually incoherent laser beams can generate each other's phase-conjugate replica by
sharing holograms in a photorefractive strontium barium niobate (SBN) crystal. The path of …

Optical parametric generation is a convenient means of providing widely tunable laser
radiation over wavelength regions not directly accessible by many of the more conventional …

We present a double exposure interferometer using a Bi12GeO20 crystal as the holographic
medium. Once the system is calibrated, the simultaneous acquisition of two phase shifted …

Previous theoretical models for linear and ring self-pumped phase-conjugate mirrors are
reviewed and modified to include the effects of linear absorption. The nonlinear …

Spatial and temporal effects arising in photorefractive crystals during the process of double
phase conjugation are analyzed numerically with a novel beam-propagation method. Slowly …

We report on double‐phase conjugation at 1.06 μm wavelength in InP: Fe with applied
continuous electric field. Conversion efficiencies up to 74% with a grating period of 9 μm are …

The ac field technique leading to the enhancement of the photorefractive effect is applied to
vanadium-doped cadmium telluride. Net photorefractive gain is obtained for the three …

We present data showing nonlinear resonantly enhanced photorefractive response at high
modulation depths in InP: Fe. A simple empirical model is used to describe the behavior …

We demonstrate double phase-conjugation in pure and Te-doped Sn_2P_2S_6, a
semiconducting ferroelectric material, at the wavelength of 685 nm. We observe a phase …

The sites of incorporation of Cu 2+ impurity ions in Bi 12 GeO 20 single crystals co-doped
with copper and vanadium have been investigated by electron paramagnetic resonance …