We propose and demonstrate the use of wavelet filters for pattern discrimination in a
photorefractive (PR) joint-transform correlator. A PR BaTiO3 crystal has been used to record …

Bias-free time-integrating optical correlator using a photorefractive crystal clickable element to
expand a topic LOGIN OR CREATE ACCOUNT PRISM SUBMISSION This website uses …

Two input real-time optical correlation using photorefractive media is discussed.
Consideration is given to the bearing of the input arrangement on the correlator's response …

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

Cross talk is observed in a photorefractive bridge mutually pumped phase conjugator during
the transient time of photorefractive grating formation and is utilized to construct a moving …

The operation of novelty filtering is demonstrated using a hybrid optical and digital system.
Dynamic gratings are written in photorefractive Bi 12 SiO 20 at 514 nm and read out at 633 …

We demonstrate a Vander Lugt type correlator based on photorefractive stoichiometric
LiTaO 3 as the volume holographic material. Accurate correlator output was obtained for …

We present and characterize theoretically and experimentally a photorefractive velocimeter.
This device, based on two-wave mixing in a rapid photorefractive crystal, measures the …

The present work describes the use of a photorefractive correlator in the measurement of in-
plane displacement. A correlation technique has been proposed and demonstrated for …

Optical low coherence reflectometry is applied to measure with pm precision the type,
position and length of gratings inside a barium-titanate crystal producing self-pumped phase …