Template effect of twist structure liquid crystal and its photonic application (Conference Presentation)

2017 ◽  
Author(s):  
Jiangang Lu
Keyword(s):  
Liquid Crystal ◽  
Template Effect ◽  
Structure Liquid ◽  
Twist Structure

scholarly journals Template Effect of Multi-Phase Liquid Crystals

Crystals ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 602
Author(s):  
Yao Gao ◽  
Tengfei Huang ◽  
Jiangang Lu
Keyword(s):  
Liquid Crystals ◽  
Optical Communication ◽  
Template Effect ◽  
Phase Liquid ◽  
Blue Phase ◽  
Multi Phase ◽  
Structure Liquid ◽  
Twist Structure

The template effects on stability of twist structure liquid crystals (LCs) were investigated. By refilling a cholesteric LC (CLC) of different pitch into a blue phase LC (BPLC) template or a sphere phase LC (SPLC) template, a multi-phase and multi-pitch twist structure LC, which includes the refilling CLC and intrinsic template BPLC or SPLC, can be fabricated. By refilling a CLC of different chiral pitch into a CLC template, a multi-pitch CLC that includes the refilling CLC and intrinsic CLC, can be fabricated. Twist structure LC devices with multi-phase and multi-pitch show great potential for applications in optical communication, displays, and LC lasing.

scholarly journals Electro-Steering Tapered Fiber-Optic Device with Liquid Crystal Cladding

2019 ◽  
Vol 2019 ◽  
pp. 1-11 ◽  
Author(s):  
Joanna Korec ◽  
Karol A. Stasiewicz ◽  
Olga Strzeżysz ◽  
Przemysław Kula ◽  
Leszek R. Jaroszewicz
Keyword(s):  
Electromagnetic Wave ◽  
Liquid Crystal ◽  
Wavelength Range ◽  
Electromagnetic Wave Propagation ◽  
Fiber Optic ◽  
Broad Band ◽  
Fiber Taper ◽  
Optical Fiber Taper ◽  
Structure Liquid

The paper presents the results of design, manufacturing, and characterization of a hybrid broad band in-line fiber-optic device. It uses nematic liquid crystal as cladding with electro-steering properties in a biconical optical fiber taper structure. Liquid crystal mixtures denoted as 6CHBT and E7 are designed for electric as well as temperature control of electromagnetic wave propagation in a broad wavelength range. The applied taper with 10±0.5 μm diameters has losses lower than 0.5 dB in whole investigated spectrum range. Three kinds of initial liquid crystal molecules’ orientations (parallel, orthogonal, and twist) in relation to the light beam propagating in a taper were applied. The performance of a tuned cladding was studied at an electric field of the range of 0–190 V and the temperature range from 20°C up to 42°C and 59°C for 6CHBT and E7, respectively. The induced reorientation of liquid crystal molecules was measured at a broad wavelength range (550-1550 nm).

Naphthyl benzoates versus phenyl benzoates A molecular structure-liquid crystal and ferroelectric behaviour relationship study

1995 ◽  
Vol 18 (5) ◽  
pp. 751-760 ◽  
Author(s):  
Yolanda González ◽  
M. Blanca Ros ◽  
Jose Luis Serrano ◽  
Miguel Angel Perez-jubindo
Keyword(s):  
Molecular Structure ◽  
Liquid Crystal ◽  
Relationship Study ◽  
Structure Liquid ◽  
Ferroelectric Behaviour
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