A 256 by 256 pixel spatial light modulator has been designed and constructed with liquid-crystal-on-silicon technology. The device is a binary electrically addressed spatial light modulator with a measured zero-order contrast ratio of 70:1 and an imaged contrast ratio of 10:1. The electronic load time is 43 μs, and the 10-to-90% switching time of the liquid crystal is 50 μs (turn-on) and 50 μs (turn-off), giving a maximum frame rate of ∼10 kHz. Its design for a specific application is described, and the first operational results are presented.
© 1993 Optical Society of America
Original Manuscript: August 4, 1993
Published: December 15, 1993
Douglas J. McKnight, Roylnn A. Serati, and Kristina M. Johnson, "Electrically addressed 256 by 256 liquid-crystal-on-silicon spatial light modulator," Opt. Lett. 18, 2159-2161 (1993)