Light-Driven Liquid Crystal Circular Dammann Grating Fabricated by a Micro-Patterned Liquid Crystal Polymer Phase Mask

Wang, Xiaoqian; Wu, Sai-Bo; Yang, Wei‐Qiang; Yuan, Cong‐Long; Li, Xiao; Liu, Zhen; Tseng, Man Chun; Chigrinov, Vladimir G.; Kwok, Hoi Sing; Shen, Dong; Zheng, Zhigang

doi:10.3390/polym9080380

Cited by 12 publications

(4 citation statements)

References 32 publications

(41 reference statements)

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“…Then inject single phase of liquid crystals which used in mobile phone screens. This type of liquid crystals does not react or dissolve metal oxides [8]. Figure (1) shows LCD cell.…”

Section: Lcd Cellmentioning

confidence: 99%

Studying the effect of impurities Bi2O3 to SiO2 used in LCD screens

Mohammed¹

2019

Tikrit J. Pure Sci.

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In this study, a liquid crystal display LCD cell was prepared. with the windows made from a thin film of SnO2 add to it Bi2O3 by weight (0,1,3,5,7)% .The effect of adding optical and electrical properties of the cell was studied. The thin film was prepared by vacuum evaporation technique. It was added to use powder mixing technique. The results showed a decrease in the value of the current passing through the cell and an increase in resistance value from 9.7MΩ to 12.5MΩ. The results also showed an increase in the cell's ability to control the light and darkness it with lower voltages by increasing the add rate. This leads to a decrease power used of a single cell. The value of the capacitance is not affected by the addition of Bi2O3 and was stable at ( 3nf ±1% ).

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“…Then inject single phase of liquid crystals which used in mobile phone screens. This type of liquid crystals does not react or dissolve metal oxides [8]. Figure (1) shows LCD cell.…”

Section: Lcd Cellmentioning

confidence: 99%

Studying the effect of impurities Bi2O3 to SiO2 used in LCD screens

Mohammed¹

2019

Tikrit J. Pure Sci.

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“…This new design consists of polarization maintaining LC waveguides, LC polarization dependent passive lens and active half wave plate (HWP) [25]. Based on the outstanding ORW properties of the photoalignment material, a binary-phase liquid crystal circular Dammann gratings with two mutually orthogonal light-induced alignments in neighboring alignment domains was proposed to generate annular patterns with equal-intensity distribution in the far field [26]. A simple mask-free real-time optical tuning of the liquid crystal circular Dammann grating was achieved by merely controlling the polarization of an ultraviolet exposure light as well as the energy dose, as shown in Figure 8.…”

Section: Optically Rewritable Technology For Photonics Devicesmentioning

confidence: 99%

“…(k-n) Micrographs for the increasing angle β from 42 • to 85 • with the increasing exposure time. (o-r) The corresponding diffraction patterns with the even diffraction orders fading in[26].…”

mentioning

confidence: 99%

Photoaligning and Photopatterning: New LC Technology

2020

Self Cite

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We demonstrate a physical model of photoalignment and photopatterning based on rotational diffusion in solid azo-dye nanolayers. We also highlight the new applications of photoalignment and photopatterning in display and photonics such as: (i) liquid crystal (LC) E-paper devices, including optically rewritable LC E-paper on flexible substrates as 3D E-paper, as well as optically rewritable technology for photonics devices; (ii) photonics LC devices, such as LC Switches, polarization controllers and polarization rotators, variable optical attenuators, LC filled photonic crystal fiber, switchable diffraction grating; (iii) patterned micro-polarizer array using photo-alignment technology for image sensor; (iv) electrically tunable liquid crystal q-plates; (v) electrically switchable liquid crystal Fresnel lens; (vi) liquid crystal optical elements with integrated Pancharatnam-Berry phases. We are sure, that in the field of (LC), the main point is no longer display research, but new photonic applications of LC are emerging in telecommunication, fiber optical communication systems, sensors, switchable lenses, LC light converters and other LC photonics devices.

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“…Yuan et al used a novel one-step holographic fabrication to make a tunable PS-BPLC phase grating of ~4 μm grating constant. In addition, common LC materials have been investigated to form LC phase gratings, including nematic [12,13], cholesteric [14,15]. smectic [16], and blue phases [17,18].…”

Section: Introductionmentioning

confidence: 99%

Fast Switchable Dual-Model Grating by Using Polymer-Stabilized Sphere Phase Liquid Crystal

Guo

et al. 2018

Polymers

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We demonstrated a fast switchable dual-model grating based on a polymer-stabilized sphere phase liquid crystal. To form binary periodicity layers, the polymer-stabilized sphere phase liquid crystal precursor was sequence ultraviolet cured at an isotropic and sphere phase. This grating jointly modulated both the phase and the amplitude, had six times the diffraction efficiency of that fabricated with polymer-stabilized blue phase liquid crystal. Moreover, the dual-model tunable grating shown polarization-independent and submillisecond response time, which may hold a great potential application in diffractive optics.

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Light-Driven Liquid Crystal Circular Dammann Grating Fabricated by a Micro-Patterned Liquid Crystal Polymer Phase Mask

Cited by 12 publications

References 32 publications

Studying the effect of impurities Bi2O3 to SiO2 used in LCD screens

Studying the effect of impurities Bi2O3 to SiO2 used in LCD screens

Photoaligning and Photopatterning: New LC Technology

Fast Switchable Dual-Model Grating by Using Polymer-Stabilized Sphere Phase Liquid Crystal

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