Pseudocoloring by birefringence modulation

MYRIAN TEBALDI; MARIA DEL CARMEN LASPRILLA A; NESTOR BOLOGNINI

Tandil

Conferencia; 4th Iberoamerican meeting on Optics and 7th Latin American Meeting on Optics, Lasers and their Applications,; 2001

Comite Territorial Optica de Argentina

When an external electric field is applied, the write-in monochromatic and spatially incoherent intensity distribution received by a BSO crystal modulates its induced birefringence. The birefringence depends on the intensity distribution projected onto the crystal and the parameters like the thickness, applied voltage and rotatory power. In the reconstructionstep, white light is employed and the birefringence modulation is transformed into a color modulation of the reconstructed image. On this basis it is analyzed the color features of the image reconstructed. By employing a gray level transparency, it results several birefringence values each one associated to a determined write-in gray level.