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Controllable real-time simple spatial filter based on selectively erasing in photorefractive two-beam coupling
- Source :
- Optics Communications. 74:15-18
- Publication Year :
- 1989
- Publisher :
- Elsevier BV, 1989.
-
Abstract
- Based on selectively erasing part of phase gratings of an image Fourier spectrum by an extra beam in photorefractive two-beam coupling in a SBN:Ce crystal, a new dynamic simple spatial filter is proposed, which has the advantages of both controllable operation and simple experimental arrangement. Computational simulation and experimental demonstration are made with an example of high pass filtering.
- Subjects :
- Coupling
Materials science
Spatial filter
business.industry
Phase (waves)
Physics::Optics
Photorefractive effect
Atomic and Molecular Physics, and Optics
Electronic, Optical and Magnetic Materials
symbols.namesake
Optics
Fourier analysis
symbols
Electrical and Electronic Engineering
Physical and Theoretical Chemistry
Photonics
business
High-pass filter
Beam (structure)
Subjects
Details
- ISSN :
- 00304018
- Volume :
- 74
- Database :
- OpenAIRE
- Journal :
- Optics Communications
- Accession number :
- edsair.doi...........311999c61dd42861083c96d266200132