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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.


Papers
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Journal ArticleDOI
TL;DR: In this article, the structure, operation, fabrication, and performance of a novel, fast response silicon liquid-crystal spatial light modulator for large screen displays and optical data processing are described.
Abstract: Detailed description is given of the structure, operation, fabrication, and performance of the novel, fast‐response silicon liquid‐crystal spatial light modulator. Applications for large screen displays and optical data processing are described.

129 citations

Journal ArticleDOI
TL;DR: Hexagonal arrays of micron sized silica beads have been trapped in three-dimensions within an optical lattice formed by the interference of multiple plane-waves, producing a stronger trapping force than the traditionally sinusoidal intensity distributions of other interferometric systems.
Abstract: Hexagonal arrays of micron sized silica beads have been trapped in three-dimensions within an optical lattice formed by the interference of multiple plane-waves. The optical lattice design with sharply peaked intensity gradients produces a stronger trapping force than the traditionally sinusoidal intensity distributions of other interferometric systems. The plane waves were generated using a single, phase-only, spatial light modulator (SLM), sited near a Talbot image plane of the traps. Compared to conventional optical tweezers, where the traps are formed in the Fourier-plane of the SLM, this approach may offer an advantage in the creation of large periodic array structures. This method of pattern formation may also be applicable to trapping arrays of atoms.

129 citations

Patent
28 Dec 2005
TL;DR: In this article, an imaging system has a programmable spectral transmission function, that includes an input image plane for passing input imaging light into the imaging system, a dispersive optical system for separating the input image light into its corresponding spectral components, thus creating spectrally-dispersed image components along a spectral dispersed direction.
Abstract: An imaging system having a programmable spectral transmission function, that includes an input image plane for passing input imaging light into the imaging system; a dispersive optical system for separating the input imaging light into its corresponding spectral components, thus creating spectrally-dispersed image components along a spectrally-dispersed direction. Also included is a spatial light modulator, having a plurality of operational states, for selecting spectral components for imaging; and having a width along the spectrally-dispersed direction; a de-dispersive optical system for re-combining the selected spectral components for imaging onto a detector array; and means for scanning the input imaging light from an object of interest to generate an output area image.

129 citations

Journal ArticleDOI
20 Feb 2017
TL;DR: This work develops a simpler but faster DOPC system that focuses light not only through, but also inside scattering media, and is an important step toward in vivo deep-tissue non-invasive optical imaging, manipulation, and therapy.
Abstract: Wavefront shaping based on digital optical phase conjugation (DOPC) focuses light through or inside scattering media, but the low speed of DOPC prevents it from being applied to thick, living biological tissue. Although a fast DOPC approach was recently developed, the reported single-shot wavefront measurement method does not work when the goal is to focus light inside, instead of through, highly scattering media. Here, using a ferroelectric liquid crystal based spatial light modulator, we develop a simpler but faster DOPC system that focuses light not only through, but also inside scattering media. By controlling 2.6×105 optical degrees of freedom, our system focused light through 3 mm thick moving chicken tissue, with a system latency of 3.0 ms. Using ultrasound-guided DOPC, along with a binary wavefront measurement method, our system focused light inside a scattering medium comprising moving tissue with a latency of 6.0 ms, which is one to two orders of magnitude shorter than those of previous digital wavefront shaping systems. Since the demonstrated speed approaches tissue decorrelation rates, this work is an important step toward in vivo deep-tissue non-invasive optical imaging, manipulation, and therapy.

128 citations

Journal ArticleDOI
TL;DR: In this article, a spatial light modulator is used to create a pair of closely separated optical traps holding different parts of the same object, which can be rotated around each other in any plane.
Abstract: We demonstrate that microscopic objects held in optical tweezers can be set into controlled rotation about any axis of choice. Our approach relies on the use of a spatial light modulator to create a pair of closely separated optical traps holding different parts of the same object. The pair of traps can be made to revolve around each other in any plane, rotating the trapped object with them. This technique overcomes the previous restriction on the orientation of the rotation axis to be parallel to the beam axis, and extends the versatility of optical tweezers as micromanipulation tools.

128 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
2023137
2022321
2021266
2020451
2019460
2018452