Journal ArticleDOI
Real-time image processing with a cat conjugator
P. R. Sreedhar,Rajpal S. Sirohi +1 more
Reads0
Chats0
TLDR
The real-time image-processing operations of edge enhancement, theta filtering, and pattern recognition are demonstrated with a self-pumped phase conjugator with an external erase beam to modify the index gratings formed inside the photorefractive BaTiO(3) crystal.Abstract:
We demonstrate the real-time image-processing operations of edge enhancement, theta filtering, and pattern recognition with a self-pumped phase conjugator with an external erase beam to modify the index gratings formed inside the photorefractive BaTiO3 crystal.read more
Citations
More filters
Journal ArticleDOI
Classification and overview of research in real-time imaging
TL;DR: A classification scheme is outlined and an overview of current research in real-time imaging is provided to lend structure to this growth.
Journal ArticleDOI
Reconfigurable free-space all-optical interconnection with beam-fanning switch in photorefractive crystal
TL;DR: In this article, a beam-fanning switch was applied to the free-space all-optical interconnection (FSO) with a beamfanning effect and an erase beam.
Journal ArticleDOI
Spatio-temporal nature of the optical return field generated by four-wave mixing in photorefractive and Kerr materials
John R. Marciante,Won B. Roh +1 more
TL;DR: In this paper, the authors theoretically analyzed the return field produced by an externally pumped Kerr medium, a externally pumped photorefractive medium, and a self-pumped photore-fraction medium for an input field with arbitrary spatial and temporal characteristics.
Proceedings ArticleDOI
Free-space all-optical interconnection with a photorefractive crystal
TL;DR: In this paper, a free-space all-optical interconnection device using the beam-fanning effect in a photorefractive crystal and perform 4 /spl times/ 4 operations was proposed.
References
More filters
Journal ArticleDOI
Self-pumped, continuous-wave phase conjugator using internal reflection
TL;DR: Continuous-wave phase conjugation of an image-bearing beam is demonstrated using a single-domain crystal of BaTiO(3) and nothing else and has a phase-conjugate reflectivity of 30%.
Journal ArticleDOI
Photorefractive effects and light‐induced charge migration in barium titanate
TL;DR: In this paper, the authors proposed a new theoretical model for the light-induced migration of charges which mediates the photorefractive effect in barium titanate and other crystals, and the theoretical model predicts the observed dependences of these effects on (1) beam intensities, directions and polarizations, (2) crystal orientation, and (3) on an externally applied dc electric field.
Journal ArticleDOI
Real-time edge enhancement using the photorefractive effect
TL;DR: The expected images are calculated using two different four-wave mixing geometries, which show good agreement with the images that are experimentally observe using a single-domain crystal of BaTiO3 as the photorefractive material.
Journal ArticleDOI
Real-time coherent object edge reconstruction with Bi(12)SiO(20) crystals.
J. P. Huignard,J. P. Herriau +1 more
Journal ArticleDOI
Simple computational model of image correlation by four-wave mixing in photorefractive media
TL;DR: A simple systems-oriented model of image correlation by nondegenerate four-wave mixing in photorefractive media is discussed, and its computational implementation is described.