Input image magnification versus read-out visibility in BSO crystals

LIA ZERBINO; MYRIAN TEBALDI; NESTOR BOLOGNINI

Porlamar (Venezuela)

Congreso; 5th Iberoamerican meeting on Optics and 8th Latin American Meeting on Optics, Lasers and their Applications; 2004

Comite Venezolano de Óptica

Image conversion is an interesting operation that can be a useful tool in image processing. In this paper we analyze the output readout visibility behavior of input images stored in a BSO photorefractive crystal. The output visibility versus the input visibility in terms of the slit width stored images of the input transparencies employed are analyzed. In this communication, non-holographic distributions with several magnifications are stored as modulation of birefringence in the crystal. In particular, the relation between the image magnification and the read-out visibility is studied. Preliminary experimental results under extinction configuration obtained by using intensity normalized slit images are described.