Adaptive properties of a liquid crystal cell with a microlens-profiled aligning surface

Reznikov, Mitya; Reznikov, Yuriy; Slyusarenko, Kostyantyn; Varshal, J.; Manevich, M.

doi:10.1063/1.4721645

Cited by 12 publications

(2 citation statements)

References 18 publications

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“…Other methods adopt nematic LCs rather than LCPs to avoid the complex device architecture and reduce the cost [55][56][57][58][59][60]. A nematic LC device with micro lens array is schematically shown in Figure 2.…”

Section: Optical Beam Shaping Based On Lcs and Shaped Polymer Structuresmentioning

confidence: 99%

Active Optical Beam Shaping Based on Liquid Crystals and Polymer Micro-Structures

et al. 2020

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Emerging applications requiring light beam manipulation, such as high-efficiency sunlight concentrators for solar cells, switchable micro-lens arrays for autostereoscopic displays, tunable lenses for augmented reality goggles, auto-focusing spectacles, and smart contact lenses, mostly depend on one or more active optical components with the desired and controllable beam modifying functionalities, preferably manufactured at relatively low cost. Recent progress in research on components based on the combination of liquid crystals (LCs) and various polymer micro-structures is reviewed in this paper. It is found that such components can address the demands appropriately and have the potential of paving the way for large-scale applications of active optical beam shaping components.

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Section: Optical Beam Shaping Based On Lcs and Shaped Polymer Structuresmentioning

confidence: 99%

Active Optical Beam Shaping Based on Liquid Crystals and Polymer Micro-Structures

et al. 2020

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“…Linear micro prism structures made on polymer substrates have been combined with well aligned nematic liquid crystals to achieve effective beam deflection 12 , 13 . The advantage is that one can implement the desired beam steering performance more precisely and easily with the help of the specially designed micro optical structures 13 , 14 . Its disadvantage is also caused by those micro optical structures, which result in higher operation voltages because the transparent conductive layer is usually positioned below the micro structure array, resulting in a large voltage drop over the micro structure material.…”

Section: Introductionmentioning

confidence: 99%

Fast switching cholesteric liquid crystal optical beam deflector with polarization independence

Shang¹,

Meeus²,

Cuypers³

et al. 2017

Sci Rep

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Optical beam deflectors based on the combination of cholesteric liquid crystals and polymer micro gratings are reported. Dual frequency cholesteric liquid crystal (DFCh-LC) is adopted to accelerate the switching from the homeotropic state back to the planar state. Polarization independent beam steering components are realized whose transmission versus the polarizing angle only varies 4.4% and 2.6% for the planar state and the homeotropic state, respectively. A response time of 451 ms is achieved for DFCh-LC-grating beam deflectors, which is fast compared to other nematic LC beam steerers with similar LC thickness.

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A microlens array based on polymer network liquid crystal

Zhou

Ren

et al. 2013

Journal of Applied Physics

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Using UV light to expose a homogeneous cell containing liquid crystal (LC)/monomer mixture through a patterned photomask, we prepared a polymer network liquid crystal (PNLC) microlens array. In each microlens, the formed polymer network presents a central-symmetrical inhomogeneous morphology and LC exhibits a gradient refractive index distribution. By applying an external voltage to the cell, the gradient of the LC refractive index is changed. As a result, the focal length of the microlens can be tuned. Our PNLC microlens array has the advantages of low operating voltage, easy fabrication, and good stability. This kind of microlens array has potential applications in image processing, optical communications, and switchable 2D/3D displays.

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Adaptive properties of a liquid crystal cell with a microlens-profiled aligning surface

Cited by 12 publications

References 18 publications

Active Optical Beam Shaping Based on Liquid Crystals and Polymer Micro-Structures

Active Optical Beam Shaping Based on Liquid Crystals and Polymer Micro-Structures

Fast switching cholesteric liquid crystal optical beam deflector with polarization independence

A microlens array based on polymer network liquid crystal

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