Field induced heliconical structure of cholesteric liquid crystal
Abstract
A diffraction grating comprises a liquid crystal (LC) cell configured to apply an electric field through a cholesteric LC material that induces the cholesteric LC material into a heliconical state with an oblique helicoid director. The applied electric field produces diffracted light from the cholesteric LC material within the visible, infrared or ultraviolet. The axis of the heliconical state is in the plane of the liquid crystal cell or perpendicular to the plane, depending on the application. A color tuning device operates with a similar heliconical state liquid crystal material but with the heliconical director axis oriented perpendicular to the plane of the cell. A power generator varies the strength of the applied electric field to adjust the wavelength of light reflected from the cholesteric liquid crystal material within the visible, infrared or ultraviolet.
- Inventors:
- Issue Date:
- Research Org.:
- Kent State Univ., Kent, OH (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1366492
- Patent Number(s):
- 9690161
- Application Number:
- 14/812,397
- Assignee:
- KENT STATE UNIVERSITY
- Patent Classifications (CPCs):
-
C - CHEMISTRY C09 - DYES C09K - MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
G - PHYSICS G02 - OPTICS G02F - DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING
- DOE Contract Number:
- FG02-06ER46331
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 2015 Jul 29
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE
Citation Formats
Lavrentovich, Oleg D., Shiyanovsii, Sergij V., Xiang, Jie, and Kim, Young-Ki. Field induced heliconical structure of cholesteric liquid crystal. United States: N. p., 2017.
Web.
Lavrentovich, Oleg D., Shiyanovsii, Sergij V., Xiang, Jie, & Kim, Young-Ki. Field induced heliconical structure of cholesteric liquid crystal. United States.
Lavrentovich, Oleg D., Shiyanovsii, Sergij V., Xiang, Jie, and Kim, Young-Ki. Tue .
"Field induced heliconical structure of cholesteric liquid crystal". United States. https://www.osti.gov/servlets/purl/1366492.
@article{osti_1366492,
title = {Field induced heliconical structure of cholesteric liquid crystal},
author = {Lavrentovich, Oleg D. and Shiyanovsii, Sergij V. and Xiang, Jie and Kim, Young-Ki},
abstractNote = {A diffraction grating comprises a liquid crystal (LC) cell configured to apply an electric field through a cholesteric LC material that induces the cholesteric LC material into a heliconical state with an oblique helicoid director. The applied electric field produces diffracted light from the cholesteric LC material within the visible, infrared or ultraviolet. The axis of the heliconical state is in the plane of the liquid crystal cell or perpendicular to the plane, depending on the application. A color tuning device operates with a similar heliconical state liquid crystal material but with the heliconical director axis oriented perpendicular to the plane of the cell. A power generator varies the strength of the applied electric field to adjust the wavelength of light reflected from the cholesteric liquid crystal material within the visible, infrared or ultraviolet.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2017},
month = {6}
}
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Works referenced in this record:
Dynamically controllable light modulator using phase diffraction grating and display using the same
patent-application, January 2005
- Kim, Nakjoong; Joo, Won-Jae
- US Patent Application 10/671557; 20050002101
Phase behavior and properties of the liquid-crystal dimer 1′′,7′′-bis(4-cyanobiphenyl-4′-yl) heptane: A twist-bend nematic liquid crystal
journal, September 2011
- Cestari, M.; Diez-Berart, S.; Dunmur, D. A.
- Physical Review E, Vol. 84, Issue 3
Nematic phase of achiral dimers spontaneously bends and twists
journal, September 2013
- Copic, M.
- Proceedings of the National Academy of Sciences, Vol. 110, Issue 40, p. 15855-15856
Electrically Tunable Selective Reflection of Light from Ultraviolet to Visible and Infrared by Heliconical Cholesterics
journal, March 2015
- Xiang, Jie; Li, Yannian; Li, Quan
- Advanced Materials, Vol. 27, Issue 19, p. 3014-3018
Chiral heliconical ground state of nanoscale pitch in a nematic liquid crystal of achiral molecular dimers
journal, September 2013
- Chen, D.; Porada, J. H.; Hooper, J. B.
- Proceedings of the National Academy of Sciences, Vol. 110, Issue 40, p. 15931-15936
Techniques for fast and sensitive measurements of two-dimensional birefringence distributions
journal, January 2003
- Shribak, Michael; Oldenbourg, Rudolf
- Applied Optics, Vol. 42, Issue 16
Chemically induced twist-bend nematic liquid crystals, liquid crystal dimers, and negative elastic constants
journal, August 2013
- Adlem, K.; Čopič, M.; Luckhurst, G. R.
- Physical Review E, Vol. 88, Issue 2
Elastic properties of bimesogenic liquid crystals
journal, February 2013
- Balachandran, R.; Panov, V. P.; Vij, J. K.
- Liquid Crystals, Vol. 40, Issue 5
Calcul de la distorsion d'une structure cholesterique par un champ magnetique
journal, March 1968
- De Gennes, P. G.
- Solid State Communications, Vol. 6, Issue 3
Electrooptic Response of Chiral Nematic Liquid Crystals with Oblique Helicoidal Director
journal, May 2014
- Xiang, Jie; Shiyanovskii, Sergij V.; Imrie, Corrie
- Physical Review Letters, Vol. 112, Issue 21
Effects of Electric and Magnetic Fields on the Structure of Cholesteric Liquid Crystals
journal, May 1968
- Meyer, Robert B.
- Applied Physics Letters, Vol. 12, Issue 9