Complex modulation with a twisted-nematic liquid-crystal spatial light modulator:: double-pixel approach

I modify the double-phase holographic code to implement complex modulation with a transmission twisted-nematic liquid-crystal display. This device is employed in the mostly phase configuration, for which the phase modulation is coupled with a nonconstant amplitude modulation. The modified double-phase code implements arbitrary complex modulation employing the constrained complex modulation of the display. (C) 2003 Optical Society of America.