Contrast manipulation and controllable spatial filtering via photorefractive two-beam coupling
A scheme is presented that achieves passive controllable spatial filtering via two-beam coupling in BaTiO<sub>3</sub>, between a reference beam and the optical Fourier transform of an input image. The nature of the spatial filtering is determined by the intensity dependent gain seen by e...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
1989-03-15.
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| Subjects: | |
| Online Access: | Get fulltext |