We have experimentally demonstrated a single-beam interferometer that effectively
subtracts an exponentially weighted history of the input from the current value, thus …

We demonstrate a technique for the differentiation of time varying optical images that
exploits the spatial frequency dependent response time of grating formation in …

The first known experimental results of real-time optical defect enhancement of a periodic
mask are reported. A low-intensity reference wave interferes with the Fourier transform of an …

A two-beam coupled photorefractive novelty filter is presented for real-time measurement of
displacement components. In the optical configuration, the BaTiO 3 crystal is oriented such …

We propose and experimentally demonstrate a simple technique capable of significantly
enhancing the signal-to-noise ratio of photorefractive amplifiers. The optical noise due to …

The purpose of this work is to study the potentialities of phase-shifting real-time holographic
interferometry for the analysis of light-induced lens in photorefractive and nonlinear optical …

A scheme is presented that achieves passive controllable spatial filtering via two-beam
coupling in BaTiO 3, between a reference beam and the optical Fourier transform of an input …

Real-time cross correlation between two transparencies using photorefractive Bi 12 SiO 20
crystals is presented. A classical two-lens coherent optical processor is used to …

Linear adaptive interferometers using diffusion holographic recording in cubic PRCs are
proposed and experimentally demonstrated for BTO. These devices are designed for linear …

We report the real-time direct interference-term measurement for a two-wave-mixing
experiment in photorefractive crystals. Knowledge of the interference term may provide …