&lt;title&gt;Advances in liquid crystal spatial light modulators&lt;/title&gt;

Bauchert, Kipp Andon; Serati, Steven A.; Furman, Alex

doi:10.1117/12.458418

Cited by 36 publications

(13 citation statements)

References 9 publications

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“…Since liquid crystal spatial light modulators (SLMs) are currently the primary choice for digital holographic displays, it is quite relevant to briefly mention current capabilities of such devices. Bauchert et al [17] reported the desirable features of liquid crystal SLMs. These features can be summarized as higher number of pixels, smaller pixel period, better optical efficiency, and faster operation.…”

Section: A Overviewmentioning

confidence: 99%

Digital Holographic Three-Dimensional Video Displays

2011

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Cataloged from PDF version of article.Holography aims to record and regenerate volume\ud filling light fields to reproduce ghost-like 3-D images that are\ud optically indistinguishable from their physical 3-D originals.\ud Digital holographic video displays are pixelated devices on which\ud digital holograms can be written at video rates. Spatial light\ud modulators (SLMs) are used for such purposes in practice; even\ud though it is desirable to have SLMs that can modulate both the\ud phase and amplitude of the incident light at each pixel, usually\ud amplitude-only or phase-only SLMs are available. Many laboratories\ud have reported working prototypes using different designs.\ud Size and resolution of the SLMs are quite demanding for\ud satisfactory 3-D reconstructions. Space–bandwidth product\ud (SBP) seems like a good metric for quality analysis. Even though\ud moderate SBP is satisfactory for a stationary observer with no\ud lateral or rotational motion, the required SBP quickly increases\ud when such motion is allowed. Multi-SLM designs, especially over\ud curved surfaces, relieve high bandwidth requirements, and\ud therefore, are strong candidates for futuristic holographic video\ud displays. Holograms are quite robust to noise and quantization. It\ud is demonstrated that either laser or light-emitting diode (LED)\ud illumination is feasible. Current research momentum is increasing\ud with many exciting and encouraging results

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Section: A Overviewmentioning

confidence: 99%

Digital Holographic Three-Dimensional Video Displays

2011

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“…Liquid crystal over silicon (LCoS) devices are a mature technology in the microdisplay market, offering various advantages over other technologies such as micromirrors [1,[3][4][5]. The main limitation with LCoS devices to date has been the response time of the liquid crystal, especially if gray-scale modulation is required.…”

Section: Introductionmentioning

confidence: 99%

“…Spatial light modulators (SLMs) can be used to manipulate the polarization state, phase, or intensity of incident light, leading to many different applications [1]. In applications such as computergenerated holography and optical correlation, continuous phase modulation gives the most optically efficient usage of the light output by removing the 180°conjugate image as well as allowing more flexibility in the way the light can be manipulated [2].…”

Section: Introductionmentioning

confidence: 99%

Polarization-independent phase modulation using a blue-phase liquid crystal over silicon device

et al. 2014

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Liquid crystal over silicon (LCoS) spatial light modulator technology has become dominant in industries such as pico-projection, which require high-quality reflective microdisplays for intensity modulation of light. They are, however, restricted from being used in wider optical applications, such as computer-generated holography, adaptive optics, and optical correlation, due to their phase modulation ability. The main drawback of these devices is that their modulation is based on simple planar or twisted nematic liquid crystals, which are inherently slow mechanisms due to their viscoelastic properties. Their use is also limited due to fact that the phase modulation is dependent on the state of polarization of the illumination. In this paper, we demonstrate that a polymer-stabilized blue-phase liquid crystal can offer both phase modulation and high speed switching in a silicon backplane device which is independent of the input polarization state. The LCoS device shows continuous phase modulation of light with a submillisecond switching time and insensitivity to the input light polarization direction. This type of phase modulation opens up a whole new class of applications for LCoS technology.

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“…In the latter case, the spectral bandwidth limitation is imposed by the chromatic angular dispersion associated with diffraction. 5 Recent developments in high-pixel-number computer-addressable two-dimensional phase-modulating systems 6,7 create the opportunity to display high-resolution modulo-2π diffractive phase profiles. However, the practical application of diffractive wavefront control with discrete element addressing poses some unique challenges.…”

Section: Introductionmentioning

confidence: 99%

Programmable diffractive optics for high-fidelity wavefront control

et al. 2002

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High-fidelity wavefront control is demonstrated via programmable modulo-2π two-dimensional phase profiles displayed on a high-resolution computer-addressable phase modulator system. This prototype setup operates with 307,200 independently addressable elements and a fill-factor and interpixel influence function that are controlled via spatial filtering in a Fourier plane. Nonlinearities in the phase response are compensated computationally. Aberration compensation with better than 1/4-wave peak-to-peak fidelity is demonstrated."

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<title>Advances in liquid crystal spatial light modulators</title>

Cited by 36 publications

References 9 publications

Digital Holographic Three-Dimensional Video Displays

Digital Holographic Three-Dimensional Video Displays

Polarization-independent phase modulation using a blue-phase liquid crystal over silicon device

Programmable diffractive optics for high-fidelity wavefront control

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