The optical implementation of a photorefractive fractional joint transforms correlator was studied. It was based on a non-degenerated four-wave mixing in a photorefractive crystal BSO. The fractional Fourier transform of the input scene, and a fractional Fourier transform of the reference image, were found interfere in the photorefractive material BSO to produce a phase hologram. The experimental results of the study of sensibility from the correlator to the rotation of the input patterns were presented.
|Número de páginas||4|
|Publicación||Proceedings of SPIE - The International Society for Optical Engineering|
|Estado||Publicada - 2001|
|Publicado de forma externa||Sí|
|Evento||4th Iberoamerican Meeting on Optics and 7th Latin American Meeting on Optics, Lasers, and Their Applications - Tandil, Argentina|
Duración: 3 sept. 2001 → 7 sept. 2001