Results 171 to 180 of about 432 (214)
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Spatial-Light-Modulator Interconnected Computers
Computer, 1987Optical technologies perform the basic computer operations of communications, switching, and storage, have already proven superior to electronics for many communications situations, and advances in devices and materials suggest that optics are important for switching and storage.
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Spatial Light Modulation in GaAs
Spatial Light Modulators and Applications, 1988Gallium Arsenide (GaAs) is the most technologically-important compound semiconductor for electronics and optoelectronics. Semi-insulating Cr-doped and undoped GaAs crystals are known to be photorefractive.1,2 This provides opportunities to use GaAs for optical processing, including spatial light modulation. In this paper, we will present recent results
Li-Jen Cheng +2 more
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Performance evaluation of spatial light modulators
Applied Optics, 1979An experimental test procedure and associated theoretical formulations are described for the evaluation of spatial light modulators (SLMs) for coherent optical computing. The experimental data included were obtained by us on Hughes liquid crystal and photo DKDP SLMs among others.
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Photorefractive Spatial Light Modulator
SPIE Proceedings, 1990A novel concept for implementing a high resolution spatial light modulator using a thin slab of photorefractive crystal is described. Experimental demonstration as well as an analysis of the operation and performance of the device are given.
John H. Hong, Scott Campbell, Pochi Yeh
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The Scophony Spatial Light Modulator
SPIE Proceedings, 1984The Scophony scanner uses the same optical elements as the more familiar flying spot scanner: a rotating polygon mirror, an acoustooptic (A/0) modulator, and a laser light source. The flying spot scanner is designed to construct its image a pixel at a time; no more than one pixel is illuminated at any given instant.
R V. Johnson, J M. Guerin, M E. Swanberg
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Photovoltaic spatial light modulator
Journal of Applied Physics, 1991A novel concept for implementing a high-resolution spatial light modulator using a thin slab of photorefractive LiNbO3 crystal is described. This method uses the photovoltaic effect to impress phase information onto the crystal without the use of holography where coherent reference beams are required.
John H. Hong +3 more
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Miniature spatial light modulators
SPIE Proceedings, 1990ABSTRACTSpatial light modulators (SLM) are examined from the viewpoint of miniaturization and optical correlation systems. The structure and behavior of a silicon-chip active-matrix-addressed ferroelectric liquid-crystal SLM is presented. Theresponse of an amorphous-silicon optically addressed nematic liquid crystal SLM is reported. 1.
David Armitage, Don K. Kinell
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Spatial light modulators and their applications
SPIE Proceedings, 1991An optical neural network system using a microchannel plate spatial light modulator (MSLM) and a computer-generated hologram (CGH) displayed on a liquid crystal TV (LCTV) display device are described. In the optical three-layer neural network, the back-propagation learning algorithm is successfully demonstrated with the uniformity of +/- 35% in ...
Toyohiko Yatagai, Ronglong Tian
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2009
In chapter 4 the so-called classical optical elements were introduced in some detail. Advanced scientific and technological optical systems require more sophisticated elements, in particular interface devices that provide a conversion between electronic and optical signals.
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In chapter 4 the so-called classical optical elements were introduced in some detail. Advanced scientific and technological optical systems require more sophisticated elements, in particular interface devices that provide a conversion between electronic and optical signals.
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Realtime spatial light modulator
Optics Communications, 1979Abstract A spatial light modulator using oil film deformation by variation of surface tension has been developed that is sensitive in the range 1–20 μm. The operation and the basic parameters are discussed.
B. Schneeberger +3 more
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