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Optics Letters

Optics Letters


  • Vol. 18, Iss. 24 — Dec. 15, 1993
  • pp: 2159–2161

Electrically addressed 256 by 256 liquid-crystal-on-silicon spatial light modulator

Douglas J. McKnight, Kristina M. Johnson, and Roylnn A. Serati  »View Author Affiliations

Optics Letters, Vol. 18, Issue 24, pp. 2159-2161 (1993)

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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)

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  1. See, for example,K. M. Johnson, D. J. McKnight, I. Underwood, IEEE J. Quantum Electron. 29, 699 (1993). [CrossRef]
  2. B. D. Bock, T. A. Crow, M. K. Giles, Proc. Soc. Photo-Opt. Instrum. Eng. 1347, 297 (1990).
  3. S. A. Serati, T. K. Ewing, R. A. Serati, K. M. Johnson, D. M. Simon, Proc. Soc. Photo-Opt. Instrum. Eng. 1959, 55 (1993).
  4. US2, Inc., 2001 Gateway Place, East San Jose, Calif. 95110.
  5. British Drug House mixtures are available from Merck Ltd., Westquay Road, Poole BH15 1HX, UK.
  6. M. Handschy, L. K. Cotter, J. D. Cunningham, T. Drabik, S. D. Gaalema, in Spatial Light Modulators and Applications, Vol. 6 of 1993 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1993), pp. 14–17.

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