scholarly journals Omnidirectional Reflection Band of One-dimensional Periodic Structure (1DPS) of Si/SiO2 with Defect Mode of Nematic Liquid Crystal (5CB)

2019 ◽  
Vol 30 (3) ◽  
pp. 117-129 ◽  
Author(s):  
Pawan Singh ◽  
◽  
Khem B Thapa ◽  
Narinder Kumar ◽  
Devesh Kumar ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Periodic Structure ◽  
Nematic Liquid Crystal ◽  
Defect Mode ◽  
Reflection Band ◽  
One Dimensional ◽  
Liquid Crystal 5Cb

Electro-Tunable Defect Mode in One-Dimensional Periodic Structure Containing Nematic Liquid Crystal as a Defect Layer

2002 ◽  
Vol 41 (Part 2, No. 12B) ◽  
pp. L1482-L1484 ◽  
Author(s):  
Ryotaro Ozaki ◽  
Tatsunosuke Matsui ◽  
Masanori Ozaki ◽  
Katsumi Yoshino
Keyword(s):  
Liquid Crystal ◽  
Periodic Structure ◽  
Nematic Liquid Crystal ◽  
Defect Mode ◽  
Defect Layer ◽  
One Dimensional

scholarly journals Theoretical Study of Tunable Optical Resonators in Periodic and Quasiperiodic One-Dimensional Photonic Structures Incorporating a Nematic Liquid Crystal

Photonics ◽  
2021 ◽  
Vol 8 (5) ◽  
pp. 150
Author(s):  
Youssef. Trabelsi ◽  
Walid. Belhadj ◽  
Naim. Ben Ali ◽  
Arafa H. Aly
Keyword(s):  
Liquid Crystal ◽  
Nematic Liquid Crystal ◽  
Photonic Band Gap ◽  
Defect Mode ◽  
Periodic Lattice ◽  
Local Defect ◽  
Strong Light ◽  
One Dimensional ◽  
Resonant Modes ◽  
Photonic Band

In this work, the transfer matrix method (TMM) is employed to investigate the optical properties of one-dimensional periodic and quasiperiodic photonic crystals containing nematic liquid crystal (NLC) layers. This structure is expressed as (ABC)J(CBA)J and made of alternated layers of isotropic dielectrics SiO2 (A), BGO (B) and nematic liquid crystal (C). The simulation study shows that the proposed ternary configuration exhibits tunable defect mode within the photonic band gap (PBG) that can be manipulated by adjusting the thicknesses of NLC layers in order of the periodic lattice. In addition, the optimized structure permits for strong confinement light giving rise to an optical microcavity. The application of an applied voltage into NLC layers enables improving the sensitivity by guiding the local defect mode. It has been also shown that by applying quasiperiodic inflation according to Rudin Shapiro Sequence (RSS) scheme to main periodic structure, several tunable resonant modes appear within the PBG. The presence of such sharp resonant peaks reflects that the quasiperiodic NLC-based structure behaves like multiple microcavites with strong light-matter coupling.

Polar Anchoring Strength and the Temperature Dependence of Nematic Liquid Crystal (5CB) Aligned on Rubbed Polystyrene Films

1992 ◽  
Vol 31 (Part 1, No. 7) ◽  
pp. 2165-2169 ◽  
Author(s):  
Dae-Shik Seo ◽  
Koh-ichi Muroi ◽  
Toh-ru Isogami ◽  
Hideaki Matsuda ◽  
Shunsuke Kobayashi
Keyword(s):  
Liquid Crystal ◽  
Temperature Dependence ◽  
Nematic Liquid Crystal ◽  
Anchoring Strength ◽  
Liquid Crystal 5Cb
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