Liquid crystals as materials for real-time holographic optical devices

1998 ◽  
Vol 7 (2) ◽  
pp. 179-189 ◽  
Author(s):  
Andrzej Miniewicz ◽  
Januz Parka ◽  
Stanislaw Bartkiewicz ◽  
Adam Januszko
Keyword(s):  
Liquid Crystals ◽  
Real Time ◽  
Optical Devices

Real-time holography in azo-dye-doped liquid crystals

1992 ◽  
Vol 17 (6) ◽  
pp. 441 ◽  
Author(s):  
Alan G. Chen ◽  
David J. Brady
Keyword(s):  
Liquid Crystals ◽  
Real Time ◽  
Azo Dye

scholarly journals Real-Time Optical and Electronic Sensing with a β-Amino Enone Linked, Triazine-Containing 2D Covalent Organic Framework

2019 ◽  
Author(s):  
Ranjit Kulkarni ◽  
Yu Noda ◽  
Deepak K. Barange ◽  
Yaroslav S. Kochergin ◽  
Barbora Balcarova ◽  
...  
Keyword(s):  
Pore Structure ◽  
Real Time ◽  
Visible Spectrum ◽  
Optical Devices ◽  
Two Dimensional ◽  
Bulk Conductivity ◽  
Electronic Response ◽  
Genuine Use ◽  
Predictive Design ◽  
Electronic Sensing

Fully-aromatic, two-dimensional covalent organic frameworks (2D COFs) are hailed as candidates for electronic and optical devices, yet to-date few applications emerged that make genuine use of their rational, predictive design principles and permanent pore structure. Here, we present a 2D COF made up of chemoresistant β-amino enone bridges and Lewis-basic triazine moieties that exhibits a dramatic real-time response in the visible spectrum and an increase in bulk conductivity by two orders of magnitude to a chemical trigger - corrosive HCl vapours. The optical and electronic response is fully reversible using a chemical switch (NH<sub>3</sub> vapours) or physical triggers (temperature or vacuum). These findings demonstrate a useful application of fully-aromatic 2D COFs as real-time responsive chemosensors and switches.

scholarly journals Real-Time Optical and Electronic Sensing with a β-Amino Enone Linked, Triazine-Containing 2D Covalent Organic Framework

2019 ◽  
Author(s):  
Ranjit Kulkarni ◽  
Yu Noda ◽  
Deepak K. Barange ◽  
Yaroslav S. Kochergin ◽  
Barbora Balcarova ◽  
...  
Keyword(s):  
Pore Structure ◽  
Real Time ◽  
Visible Spectrum ◽  
Optical Devices ◽  
Two Dimensional ◽  
Bulk Conductivity ◽  
Electronic Response ◽  
Genuine Use ◽  
Predictive Design ◽  
Electronic Sensing

Fully-aromatic, two-dimensional covalent organic frameworks (2D COFs) are hailed as candidates for electronic and optical devices, yet to-date few applications emerged that make genuine use of their rational, predictive design principles and permanent pore structure. Here, we present a 2D COF made up of chemoresistant β-amino enone bridges and Lewis-basic triazine moieties that exhibits a dramatic real-time response in the visible spectrum and an increase in bulk conductivity by two orders of magnitude to a chemical trigger - corrosive HCl vapours. The optical and electronic response is fully reversible using a chemical switch (NH<sub>3</sub> vapours) or physical triggers (temperature or vacuum). These findings demonstrate a useful application of fully-aromatic 2D COFs as real-time responsive chemosensors and switches.

Application of Ferroelectric Liquid Crystals to Optical Devices

2014 ◽  
Vol 596 (1) ◽  
pp. 106-112 ◽  
Author(s):  
J. Akaogi ◽  
Y. Koizumi ◽  
M. Ono ◽  
H. Furue
Keyword(s):  
Liquid Crystals ◽  
Optical Devices ◽  
Ferroelectric Liquid Crystals

Liquid crystal alignment in cylindrical microcapillaries

2012 ◽  
Vol 20 (1) ◽  
Author(s):  
M. Chychłowski ◽  
O. Yaroshchuk ◽  
R. Kravchuk ◽  
T. Woliński
Keyword(s):  
Liquid Crystal ◽  
Liquid Crystals ◽  
Photonic Crystal ◽  
Boundary Conditions ◽  
Photonic Crystal Fibers ◽  
Optical Devices ◽  
Liquid Crystal Alignment ◽  
Disclination Line ◽  
Crystal Alignment ◽  
Crystal Fibers

AbstractA variety of alignment configurations of liquid crystals (LCs) inside the glassy cylindrical capillaries is realized by using alignment materials providing different anchoring. The radial configuration with central disclination line is obtained for homeotropic boundary conditions. In turn, the axial, transversal and tilted alignment structures are realized by using materials for planar anchoring. The uniformity and controlling of the latter structures were provided by photoalignment method. This approach can be further used to control LC alignment in the photonic crystal fibers recognized as advanced elements for different optical devices.

Fast, Real-Time, In Situ Monitoring of Solar Ultraviolet Radiation Using Sunlight-Driven Photoresponsive Liquid Crystals

2018 ◽  
Vol 6 (6) ◽  
pp. 1701337 ◽  
Author(s):  
Jiajun Tian ◽  
Yanrong He ◽  
Juntao Li ◽  
Jie Wei ◽  
Gangqiang Li ◽  
...  
Keyword(s):  
Liquid Crystals ◽  
Ultraviolet Radiation ◽  
Real Time ◽  
In Situ Monitoring ◽  
Solar Ultraviolet Radiation ◽  
Solar Ultraviolet

Real‐time holographic grating by means of photoresponsive polymer liquid crystals with a flexible siloxane spacer in the side chain

1999 ◽  
Vol 9 (11) ◽  
pp. 2765-2769 ◽  
Author(s):  
Makoto Hasegawa ◽  
Takahiro Yamamoto ◽  
Akihiko Kanazawa ◽  
Takeshi Shiono ◽  
Tomiki Ikeda ◽  
...  
Keyword(s):  
Liquid Crystals ◽  
Real Time ◽  
Holographic Grating ◽  
Side Chain ◽  
Polymer Liquid ◽  
Polymer Liquid Crystals

Real-time microbe detection based on director distortions around growing immune complexes in lyotropic chromonic liquid crystals

2005 ◽  
Vol 71 (2) ◽  
Author(s):  
S. V. Shiyanovskii ◽  
T. Schneider ◽  
I. I. Smalyukh ◽  
T. Ishikawa ◽  
G. D. Niehaus ◽  
...  
Keyword(s):  
Liquid Crystals ◽  
Real Time ◽  
Immune Complexes

A real-time holographic display using doped liquid crystals

SPIE Newsroom ◽  
2014 ◽  
Author(s):  
Yikai Su ◽  
Xiao Li ◽  
Chao Ping Chen ◽  
Yan Li
Keyword(s):  
Liquid Crystals ◽  
Real Time ◽  
Holographic Display
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