I. Labastida et al., Optical correlation by use of partial phase-only modulation with VGA liquid-crystal displays, APPL OPTICS, 39(5), 2000, pp. 766-769
The development of liquid-crystal panels for use in commercial equipment ha
s been aimed at improving the pixel resolution and the display efficiency.
These improvements have led to a reduction in the thickness of such devices
, among other outcomes, that involves a loss in phase modulation. We propos
e a modification of the classical phase-only filter to permit displays in V
GA liquid-crystal panels with a constant amplitude modulation and less than
a 2 pi phase modulation. The method was tested experimentally in an optica
l setup. (C) 2000 Optical Society of America.