Symmetric Continuously Tunable Photonic Band Gaps in Blue-Phase Liquid Crystals Switched by an Alternating Current Field

2019 ◽  
Vol 11 (24) ◽  
pp. 22015-22020 ◽  
Author(s):  
Xiao-Wei Du ◽  
De-Shan Hou ◽  
Xuan Li ◽  
Dong-Peng Sun ◽  
Jiong-Fang Lan ◽  
...  
Keyword(s):  
Liquid Crystals ◽  
Alternating Current ◽  
Band Gaps ◽  
Photonic Band Gaps ◽  
Current Field ◽  
Phase Liquid ◽  
Blue Phase ◽  
Photonic Band

scholarly journals Electrically tunable photonic band gap structure in monodomain blue-phase liquid crystals

2020 ◽  
Vol 12 (1) ◽  
Author(s):  
Ramesh Manda ◽  
Srinivas Pagidi ◽  
Yunjin Heo ◽  
Young Jin Lim ◽  
MinSu Kim ◽  
...  
Keyword(s):  
Liquid Crystals ◽  
Band Gap ◽  
Photonic Band Gap ◽  
Phase Liquid ◽  
Blue Phase ◽  
Photonic Band Gap Structure ◽  
Band Gap Structure ◽  
Photonic Band ◽  
Gap Structure

Influence of structural parameters on tunable photonic band gaps modulated by liquid crystals

2011 ◽  
Author(s):  
Aiqin Huang ◽  
Jihong Zheng ◽  
Yanmeng Jiang ◽  
Zengjun Zhou ◽  
Pingyu Tang ◽  
...  
Keyword(s):  
Liquid Crystals ◽  
Structural Parameters ◽  
Band Gaps ◽  
Photonic Band Gaps ◽  
Photonic Band

Optically tuneable blue phase photonic band gaps

2010 ◽  
Vol 96 (12) ◽  
pp. 121103 ◽  
Author(s):  
Hu-Yi Liu ◽  
Chun-Ta Wang ◽  
Chiao-Yun Hsu ◽  
Tsung-Hsien Lin ◽  
Jui-Hsiang Liu
Keyword(s):  
Band Gaps ◽  
Photonic Band Gaps ◽  
Blue Phase ◽  
Photonic Band

Simulating Photonic Band Gaps in Crystals

2007 ◽  
Author(s):  
Daniel H. Kodan ◽  
Peter W. Chung
Keyword(s):  
Band Gaps ◽  
Photonic Band Gaps ◽  
Photonic Band

scholarly journals Diffusionless transformation of soft cubic superstructure from amorphous to simple cubic and body-centered cubic phases

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Jie Liu ◽  
Wenzhe Liu ◽  
Bo Guan ◽  
Bo Wang ◽  
Lei Shi ◽  
...  
Keyword(s):  
Liquid Crystals ◽  
X Ray Diffraction ◽  
Photonic Materials ◽  
Simple Cubic ◽  
Cubic Phases ◽  
Transmission Electron ◽  
Phase Liquid ◽  
Blue Phase ◽  
Blue Phases ◽  
Temperature Window

AbstractIn a narrow temperature window in going from the isotropic to highly chiral orders, cholesteric liquid crystals exhibit so-called blue phases, consisting of different morphologies of long, space-filling double twisted cylinders. Those of cubic spatial symmetry have attracted considerable attention in recent years as templates for soft photonic materials. The latter often requires the creation of monodomains of predefined orientation and size, but their engineering is complicated by a lack of comprehensive understanding of how blue phases nucleate and transform into each other at a submicrometer length scale. In this work, we accomplish this by intercepting nucleation processes at intermediate stages with fast cross-linking of a stabilizing polymer matrix. We reveal using transmission electron microscopy, synchrotron small-angle X-ray diffraction, and angle-resolved microspectroscopy that the grid of double-twisted cylinders undergoes highly coordinated, diffusionless transformations. In light of our findings, the implementation of several applications is discussed, such as temperature-switchable QR codes, micro-area lasing, and fabrication of blue phase liquid crystals with large domain sizes.

Geometrically distributed aperiodic circular photonic crystals with broad and isotropic photonic band gaps

2011 ◽  
Vol 284 (8) ◽  
pp. 2239-2241 ◽  
Author(s):  
Qing Guo Du ◽  
G. Alagappan ◽  
H.V. Demir ◽  
C.H. Kam ◽  
X.W. Sun ◽  
...  
Keyword(s):  
Photonic Crystals ◽  
Band Gaps ◽  
Photonic Band Gaps ◽  
Photonic Band

Photonic band gaps and photonic windows in cascaded optical waveguides: a complete analysis of the electromagnetic scattering properties

2003 ◽  
Vol 0 (5) ◽  
pp. 1408-1411
Author(s):  
J. Rodríguez García ◽  
O. Hidalgo Alonso ◽  
S. Fernández Fernández ◽  
I. Ibáñez Martín
Keyword(s):  
Electromagnetic Scattering ◽  
Optical Waveguides ◽  
Band Gaps ◽  
Complete Analysis ◽  
Photonic Band Gaps ◽  
Photonic Band
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