Topic
Spatial light modulator
About: Spatial light modulator is a research topic. Over the lifetime, 9043 publications have been published within this topic receiving 130143 citations.
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TL;DR: This work demonstrates a versatile electronically controlled variant of differential interference contrast microscopy using a liquid-crystal spatial light modulator that displays a diffractive optical element and steers the beam separation.
Abstract: Differential interference contrast microscopy, imaging by interferometric superposition of two displaced beams passed through a transparent sample, is one of the most sophisticated methods in classical microscopy. Here we demonstrate a versatile electronically controlled variant using a liquid-crystal spatial light modulator that displays a diffractive optical element and steers the beam separation. The orientation and magnitude of the shear angle and the relative phase of the two interfering beams can all be varied at video rates. The technique is demonstrated by imaging polystyrene beads in immersion oil and a sample of red blood cells. The method expands the capabilities of previous implementations of differential interference contrast microscopy by its nonmechanical control over all imaging parameters.
56 citations
TL;DR: A bistable spatial light modulator is developed by utilizing optical bistability of ferroelectric liquid-crystal molecule to read out positive and negative images by changing the polarity of applied electric pulses.
Abstract: A bistable spatial light modulator is developed by utilizing optical bistability of ferroelectric liquid-crystal molecules. Both positive and negative images are read out by changing the polarity of applied electric pulses. A binary image is stored for more than 2 h, and gray-level operation is also possible during the gradual decay after writing.
56 citations
TL;DR: Correlation experiments for the images used in the proposed setup indicate that nonlinear compression of the joint power spectrum may be necessary to produce good correlation performance and a peak-to-sidelobe ratio of larger than unity.
Abstract: Correlation experiments for the images used in the proposed setup indicate that nonlinear compression of the joint power spectrum may be necessary to produce good correlation performance and a peak-to-sidelobe ratio of larger than unity.
55 citations
Patent•
02 Oct 1998
TL;DR: In this paper, a single-panel field-sequential full-color display system with a spatial light modulator is presented, in which a frame buffer pixel circuit is integrated into the spatial modulator.
Abstract: The present invention provides a single-panel field-sequential full color display systems that are less complex, smaller in size and less costly than prior additive split-path color systems, while exhibiting higher light output, greater flexibility and greater reliability than prior single-panel field-sequential systems. In the first preferred embodiment, the display system includes a “frame buffer” style spatial light modulator, in which a frame buffer pixel circuit is integrated into the spatial light modulator. The display system of the present invention also preferably includes on opto-electronic color sequencer which allows for the electronic control of the transmission of additive primary colors.
55 citations
TL;DR: A high-resolution, high-precision beam-shaping system for high-power-laser systems is demonstrated and an unprecedented degree of convergence is demonstrated, and important practical issues are discussed.
Abstract: A high-resolution, high-precision beam-shaping system for high-power-laser systems is demonstrated. A liquid-crystal-on-silicon spatial light modulator is run in closed-loop to shape laser-beam amplitude and wavefront. An unprecedented degree of convergence is demonstrated, and important practical issues are discussed. Wavefront shaping for the applications in OMEGA EP laser is demonstrated, and other interesting examples are presented.
55 citations