New liquid-crystal media and photoconductor materials are being utilized in spatial light modulators to increase their resolution, diffraction efficiency, speed, and sensitivity. A prototypical device developed for real-time holography applications has shown an 8% diffraction efficiency from a holographic grating with a spatial frequency of 370 line pairs/mm (lp/mm). At 18 lp/mm the device has demonstrated a 31% diffraction efficiency with a 600-µs hologram write time using 400-nJ/cm2 write beams.
© 1999 Optical Society of America
Original Manuscript: September 18, 1998
Revised Manuscript: February 12, 1999
Published: June 10, 1999
David V. Wick, Ty Martinez, Michael V. Wood, James M. Wilkes, Mark T. Gruneisen, Vladimir A. Berenberg, Michael V. Vasil’ev, Arkady P. Onokhov, and Leonid A. Beresnev, "Deformed-helix ferroelectric liquid-crystal spatial light modulator that demonstrates high diffraction efficiency and 370-line pairs/mm resolution," Appl. Opt. 38, 3798-3803 (1999)