One-dimensional photonic crystals containing memory-enabling liquid-crystal defect layers

2013 ◽  
Author(s):  
Po-Chang Wu ◽  
Wei Lee
Keyword(s):  
Liquid Crystal ◽  
Photonic Crystals ◽  
Crystal Defect ◽  
One Dimensional

Tuned switching of surface waves by a liquid crystal cap layer in one-dimensional photonic crystals

2012 ◽  
Vol 51 (15) ◽  
pp. 2909 ◽  
Author(s):  
Hodjat Hajian ◽  
Behrooz Rezaei ◽  
Ali Soltani Vala ◽  
Manoochehr Kalafi
Keyword(s):  
Liquid Crystal ◽  
Photonic Crystals ◽  
Surface Waves ◽  
One Dimensional ◽  
Cap Layer

scholarly journals Investigation of the tunable laser of one-dimensional photonic crystal with dye-doped nematic liquid crystal defect layer

2012 ◽  
Vol 61 (11) ◽  
pp. 114211
Author(s):  
Liu Yong-Jun ◽  
Sun Wei-Min ◽  
Liu Xiao-Qi ◽  
Yao Li-Shuang ◽  
Lu Xing-Hai ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Photonic Crystal ◽  
Nematic Liquid Crystal ◽  
Tunable Laser ◽  
Defect Layer ◽  
Crystal Defect ◽  
One Dimensional ◽  
Dimensional Photonic Crystal

Radial and Azimuthal Polarizer Using a One-Dimensional Photonic Crystal with a Patterned Liquid Crystal Defect Layer

2010 ◽  
Vol 3 (6) ◽  
pp. 062002 ◽  
Author(s):  
Kenji Tagashira ◽  
Hiroyuki Yoshida ◽  
Hitoshi Kubo ◽  
Akihiko Fujii ◽  
Masanori Ozaki
Keyword(s):  
Liquid Crystal ◽  
Photonic Crystal ◽  
Defect Layer ◽  
Crystal Defect ◽  
One Dimensional ◽  
Dimensional Photonic Crystal

The Defect Modes Property Controlled by Temperature in One Dimensional Photonic Crystal with Liquid Crystal Defect Layer

2012 ◽  
Vol 586 ◽  
pp. 206-209 ◽  
Author(s):  
Xin Xing Yin ◽  
Ying Mao Xie ◽  
Hui Zhen Wang ◽  
Rui Lin Xiao
Keyword(s):  
Liquid Crystal ◽  
Photonic Crystal ◽  
Temperature Sensitivity ◽  
Defect Layer ◽  
Crystal Defect ◽  
Wavelength Shift ◽  
Temperature Property ◽  
Defect Modes ◽  
One Dimensional ◽  
Dimensional Photonic Crystal

The 5CB liquid crystal as defects will be introduced to one dimensional photonic crystal, taking advantage of temperature property of liquid crystal refractive index, the transmission spectrum of one dimensional liquid crystal defect photonic crystal defect modes was researched by the transfer matrix method(TMM). The numerical results indicated that when the temperature went up, one dimensional liquid crystal defect photonic crystal defect modes removed towards the long wavelength. When the temperature increased from 273k to 320k, the defect modes wavelength from 5121nm drifted to 5508nm, the wavelength shift was 387nm and the maximum of temperature sensitivity was 10.85nm/K, it was also observed that the temperature sensitivity decreased as the temperature increased.

scholarly journals Photochemical On–Off Switching of One-Dimensional Photonic Crystals Consisting of Azo-Functionalized Liquid Crystal Polymer and Polyvinyl Alcohol

Crystals ◽  
2019 ◽  
Vol 9 (12) ◽  
pp. 610 ◽  
Author(s):  
Sunnam Kim ◽  
Seiji Kurihara
Keyword(s):  
Phase Transition ◽  
Refractive Index ◽  
Liquid Crystal ◽  
Photonic Crystals ◽  
Polyvinyl Alcohol ◽  
Refractive Index Change ◽  
Liquid Crystal Polymer ◽  
Index Change ◽  
One Dimensional ◽  
Crystal Polymer

One-dimensional (1D) photonic crystals (PCs) are prepared from multi-bilayered films stacked with alternating azo-functionalized liquid crystal polymer (PAz) films and polyvinyl alcohol (PVA) films. Reflection with a wavelength that depends on the thickness of the films is observed, and the reflection can be turned on and off by switching between the two states, based on whether there is a difference in the refractive index between the two films. The refractive index change of PAz can be photochemically caused by a phase transition, based on the alignment states of the liquid crystal (LC). In this review, we focused on an effective photo-induced on–off switching approach in 1D PCs using LC properties and described the basic optical and chemical principles, the experimental results, and further optimizations.

Sign in / Sign up

Export Citation Format

Share Document