Dynamic Scattering by a Nematic Liquid Crystal Where the Applied Electric Field Is Normal to the Incident Light

1971 ◽  
Vol 42 (13) ◽  
pp. 5395-5399 ◽  
Author(s):  
W. W. Holloway ◽  
M. J. Rafuse
Keyword(s):  
Liquid Crystal ◽  
Electric Field ◽  
Nematic Liquid Crystal ◽  
Applied Electric Field ◽  
Incident Light ◽  
Dynamic Scattering

LIQUID CRYSTLASLIGHT SCATTERING BY FLUCTUATIONS INDUCED BY AN APPLIED ELECTRIC FIELD IN A NEMATIC LIQUID CRYSTAL (APAPA)

1972 ◽  
Vol 33 (C1) ◽  
pp. C1-63-C1-67 ◽  
Author(s):  
M. BERTOLOTTI ◽  
B. DAINO ◽  
P. Di PORTO ◽  
F. SCUDIERI ◽  
D. SETTE
Keyword(s):  
Liquid Crystal ◽  
Electric Field ◽  
Nematic Liquid Crystal ◽  
Applied Electric Field

The breathers in nematic liquid crystals under applied electric field

2019 ◽  
Vol 33 (26) ◽  
pp. 1950319
Author(s):  
Yan Li ◽  
Xiaobo Lu ◽  
Chunfeng Hou
Keyword(s):  
Liquid Crystal ◽  
Liquid Crystals ◽  
Electric Field ◽  
Nematic Liquid Crystal ◽  
Dynamic Equation ◽  
Applied Electric Field ◽  
Deflection Angle ◽  
Breather Solution ◽  
The Relationship ◽  
Sg Equation

In this paper, we study the twist of the nematic liquid crystal molecules under the applied electric field. The dynamic equation of the twisted molecules is derived. It is proved to be a kind of sine-Gordon (SG) equation. We obtain the breather solution of the equation and confirm that the deflection angles of the twisted molecules can distribute in the form of breathers. We give the relationship between the molecular deflection angle and the breather frequency, and discuss the effect of electric field on breather shape and breather frequency.

Diffraction behavior of an azo-dye-doped nematic liquid crystal without applied electric field

2008 ◽  
Vol 8 (1) ◽  
pp. 31-35 ◽  
Author(s):  
Hongyue Gao ◽  
Kaiyu Gu ◽  
Zhongxiang Zhou ◽  
Yongyuan Jiang ◽  
Dewei Gong
Keyword(s):  
Liquid Crystal ◽  
Electric Field ◽  
Nematic Liquid Crystal ◽  
Applied Electric Field ◽  
Azo Dye

The Localized Mode and its Photoluminescence Characteristics of the Nematic-Liquid-Crystal-Filled One Dimensional Photonic Crystal

2012 ◽  
Vol 586 ◽  
pp. 45-49 ◽  
Author(s):  
Bing Xiang Li ◽  
Ying Mao Xie ◽  
Chun Xiang Zeng
Keyword(s):  
Liquid Crystal ◽  
Photonic Crystal ◽  
Electric Field ◽  
Nematic Liquid Crystal ◽  
Incident Light ◽  
Defect Layer ◽  
Defect Modes ◽  
One Dimensional ◽  
Localized Mode ◽  
Uniaxial Media

The localized mode and its Photoluminescence Characteristics of one dimensional liquid-crystal-filled photonic crystal with a defect layer (1DNLCFPC) were studied numerically by the transfer matrix method. Nematic liquid crystal (NLC) could be treated as uniaxial media when the external electric field intensity over the threshold. The angle θ was the angle between the direction of the vertical incident light and the direction of the electric field. When θ increased, the results could be found as follow: the 1DNLCFPC’s band gap gets wide and the wavelengths of both band edges get small; the defect mode’s wavelength of 1DNLCFPC gets small. The half-width at the defect modes’ half maximum is less than 0.2nm. The localized phenomenon can be found in the defect modes, meanwhile, light energy is localized nearby the defect layer. The largest relative light intensity in the localized layers has large value when the pump rate is very small.

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.

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