We present a method of producing a computer-generated hologram by use of a zero-twist linear nematic liquid-crystal spatial light modulator. A 2×1 macro pixel method is used; one pixel represents the real data, and one, the imaginary. A method is shown that produces both positive and negative analog amplitude modulation.
© 2000 Optical Society of America
(090.1760) Holography : Computer holography
Philip M. Birch, Rupert Young, David Budgett, and Chris Chatwin, "Two-pixel computer-generated hologram with a zero-twist nematic liquid-crystal spatial light modulator," Opt. Lett. 25, 1013-1015 (2000)