Real-time associative memory with photorefractive crystal KNSBN and liquid-crystal optical switches

1990 ◽  
Author(s):  
Haiying Xu ◽  
Yang Y. Yuan ◽  
Youlong Yu ◽  
Kebin Xu ◽  
Yuhuan Xu ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Real Time ◽  
Associative Memory ◽  
Optical Switches ◽  
Photorefractive Crystal

Performance of real time associative memory using a photorefractive crystal and liquid crystal electrooptic switches

1990 ◽  
Vol 29 (23) ◽  
pp. 3375 ◽  
Author(s):  
Haiying Xu ◽  
Yang Yuan ◽  
Youlong Yu ◽  
Kebin Xu ◽  
Yuhuan Xu
Keyword(s):  
Liquid Crystal ◽  
Real Time ◽  
Associative Memory ◽  
Photorefractive Crystal

Investigation on dynamic holographic display in liquid crystal film doped with carbon dots

2020 ◽  
Vol 10 (6) ◽  
pp. 780-787
Author(s):  
Hongyue Gao ◽  
Suna Li ◽  
Jicheng Liu ◽  
Wen Zhou ◽  
Fan Xu ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Electric Field ◽  
Real Time ◽  
Diffraction Efficiency ◽  
Carbon Dots ◽  
Applied Electric Field ◽  
Light Polarization ◽  
Forming Process ◽  
Time Dynamic ◽  
Holographic Display

In this paper, we studied the holographic properties of liquid crystal (LC) thin film doped with carbon dots (CDs) which can be used as real-time holographic display screen. The maximum value of diffraction efficiency can reach up to 30% by using a low applied electric field 0.2 V/μm. Holograms in the LC film can be dynamically formed and self-erased. The hologram build-up time and the hologram self-erasure time in the material is fast enough to realize video refresh rate. In addition, the forming process of hologram was studied. The holographic diffraction efficiency was measured depending on the intensity of recording light, applied electric field, the intensity of readout light, and readout light polarization direction. Triple enhancement of the diffraction efficiency value by the modulation of voltage under the condition of low recording energy is presented. Therefore, we develop an easy way to obtain real-time dynamic holographic red, green and blue displays with high diffraction efficiency, which allow the LC film doped with CDs to be used as a holographic 3D display screen.

Integrated optical switches using liquid crystal cells

1998 ◽  
Author(s):  
Luigi Sirleto ◽  
Michele A. Forastiere ◽  
Giancarlo C. Righini ◽  
Alessandro Verciani ◽  
Giancarlo Abbate ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Optical Switches ◽  
Integrated Optical ◽  
Crystal Cells

A real time optical strain sensor based on a cholesteric liquid crystal network

RSC Advances ◽  
2013 ◽  
Vol 3 (41) ◽  
pp. 18794 ◽  
Author(s):  
Olivier T. Picot ◽  
Mian Dai ◽  
Emiliano Billoti ◽  
Dirk J. Broer ◽  
Ton Peijs ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Real Time ◽  
Cholesteric Liquid Crystal ◽  
Strain Sensor ◽  
Crystal Network ◽  
Optical Strain

scholarly journals Real-Time Multi-Functional Near-Infrared Wave Manipulation with a 3-bit Liquid Crystal based Coding Metasurface

2021 ◽  
Author(s):  
Javad Shabanpour ◽  
Morteza Sedaghat ◽  
Vahid Nayyeri ◽  
Homayoon Oraizi ◽  
Omar Ramahi
Keyword(s):  
Liquid Crystal ◽  
Real Time ◽  
Near Infrared ◽  
Infrared Wave
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