Enhanced optical nonlinearity near the photonic bandgap edges of a cholesteric liquid crystal

2004 ◽  
Vol 29 (22) ◽  
pp. 2644 ◽  
Author(s):  
Jisoo Hwang ◽  
N. Y. Ha ◽  
H. J. Chang ◽  
Byoungchoo Park ◽  
J. W. Wu
Keyword(s):  
Liquid Crystal ◽  
Photonic Bandgap ◽  
Cholesteric Liquid Crystal ◽  
Optical Nonlinearity

scholarly journals Chiral Optical Tamm States at the Interface between an All-Dielectric Polarization-Preserving Anisotropic Mirror and a Cholesteric Liquid Crystal

Crystals ◽  
2019 ◽  
Vol 9 (10) ◽  
pp. 502 ◽  
Author(s):  
Natalya V. Rudakova ◽  
Ivan V. Timofeev ◽  
Rashid G. Bikbaev ◽  
Maxim V. Pyatnov ◽  
Stepan Ya. Vetrov ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Photonic Bandgap ◽  
Cholesteric Liquid Crystal ◽  
Hybrid Structure ◽  
Dielectric Polarization ◽  
Transmission Resonance ◽  
Localized State ◽  
Sensing Applications ◽  
Dielectric Mirror ◽  
Tamm State

As a new localized state of light, the chiral optical Tamm state exists at the interface between a polarization-retaining anisotropic mirror and a substance with optical activity. Considering a hybrid structure comprising a metal-free polarization-preserving mirror and a cholesteric liquid crystal, we highlight the high Q factor arising from the all-dielectric framework. The intensity of localized light decreases exponentially with increasing distance from the interface. The penetration of the field into the cholesteric liquid crystal is essentially prohibited for wavelengths lying in the photonic bandgap and close to the cholesteric pitch length. The dielectric mirror has its own photonic bandgap. The energy transfer along the interface can be effectively switched off by setting the tangential wave vector to zero. The spectral behavior of the chiral optical Tamm state is observed both as reflection and transmission resonance. This Fano resonance is analogous to the Kopp–Genack effect. Our analytics are well in line with precise calculations, which may pave a new route for the future development of intelligent design for laser and sensing applications.

Widely tunable photonic bandgap and lasing emission in enantiomorphic cholesteric liquid crystal templates

2017 ◽  
Vol 5 (13) ◽  
pp. 3222-3228 ◽  
Author(s):  
Jia-De Lin ◽  
Hong-Lin Lin ◽  
Hsin-Yu Lin ◽  
Guan-Jhong Wei ◽  
Yu-Chou Chuang ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Nematic Liquid Crystal ◽  
Photonic Bandgap ◽  
Cholesteric Liquid Crystal ◽  
Liquid Crystal Polymer ◽  
Crystal Polymer ◽  
Polymer Template

Widely tunable reflection and lasing emission in a dye-doped nematic liquid crystal refilled gradient-pitched enantiomorphic cholesteric liquid crystal polymer template.

Dispersion of proton spin-lattice relaxation in a cholesteric liquid crystal

1983 ◽  
Vol 44 (10) ◽  
pp. 1179-1184 ◽  
Author(s):  
M. Vilfan ◽  
R. Blinc ◽  
J. Dolinšek ◽  
M. Ipavec ◽  
G. Lahajnar ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Cholesteric Liquid Crystal ◽  
Lattice Relaxation ◽  
Proton Spin ◽  
Spin Lattice Relaxation ◽  
Spin Lattice

scholarly journals Flow-assisted self-healing of the helical structure in a cholesteric liquid crystal

2021 ◽  
Vol 155 (5) ◽  
pp. 054903
Author(s):  
Jan-Christoph Eichler ◽  
Robert A. Skutnik ◽  
Marco G. Mazza ◽  
Martin Schoen
Keyword(s):  
Liquid Crystal ◽  
Cholesteric Liquid Crystal ◽  
Helical Structure ◽  
Self Healing

scholarly journals The temperature dependence of the helical pitch in a cholesteric liquid crystal

2021 ◽  
pp. e1881638
Author(s):  
Robert A. Skutnik ◽  
Jan-Christoph Eichler ◽  
Marco G. Mazza ◽  
Martin Schoen
Keyword(s):  
Liquid Crystal ◽  
Temperature Dependence ◽  
Cholesteric Liquid Crystal ◽  
Helical Pitch

Electrically tunable cholesteric liquid crystal lines defects

2021 ◽  
Vol 114 ◽  
pp. 110960
Author(s):  
Lotfi Saadaoui ◽  
Ridha Hamdi
Keyword(s):  
Liquid Crystal ◽  
Cholesteric Liquid Crystal
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