128 x 128 analog liquid crystal spatial light modulator

Steven A. Serati; Gary D. Sharp; Roylnn A. Serati; Douglas J. McKnight; Jay E. Stockley

doi:10.1117/12.205797

28 March 1995 128 x 128 analog liquid crystal spatial light modulator

Steven A. Serati, Gary D. Sharp, Roylnn A. Serati, Douglas J. McKnight, Jay E. Stockley

Proceedings Volume 2490, Optical Pattern Recognition VI; (1995) https://doi.org/10.1117/12.205797
Event: SPIE's 1995 Symposium on OE/Aerospace Sensing and Dual Use Photonics, 1995, Orlando, FL, United States

Abstract

An analog 128 X 128 spatial light modulator (SLM) has been designed and constructed using liquid crystal on silicon technology. This device is loaded with eight-bit grey-level data in 100 microsecond(s) . Its pixel pitch is 40 micrometers giving an array size of 5.12 X 5.12 mm. Low-voltage ferroelectric liquid crystals are used for the electro-optic modulator. These analog materials have 50 microsecond(s) to 100 microsecond(s) switching times, implying a frame rate of approximately 5 kHz. This paper presents results of the analog SLM and discusses modulation enhancements for improving correlator performance.

Citation Download Citation

Steven A. Serati, Gary D. Sharp, Roylnn A. Serati, Douglas J. McKnight, and Jay E. Stockley "128 x 128 analog liquid crystal spatial light modulator", Proc. SPIE 2490, Optical Pattern Recognition VI, (28 March 1995); https://doi.org/10.1117/12.205797

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