27.4: Hysteresis-Free Modulation Characteristic and Electro-Optical Response in Helix-Free Ferroelectric Liquid Crystals

2018 ◽  
Vol 49 ◽  
pp. 298-300
Author(s):  
Alexander L. Andreev ◽  
Tatiana B. Andreeva ◽  
Igor N. Kompanets ◽  
Nikolay V. Zalyapin
Keyword(s):  
Liquid Crystals ◽  
Optical Response ◽  
Ferroelectric Liquid Crystals ◽  
Modulation Characteristic

scholarly journals Helix-Free Ferroelectric Liquid Crystals: Electro Optics and Possible Applications

2018 ◽  
Vol 8 (12) ◽  
pp. 2429 ◽  
Author(s):  
Alexander Andreev ◽  
Tatiana Andreeva ◽  
Igor Kompanets ◽  
Nikolay Zalyapin
Keyword(s):  
Liquid Crystals ◽  
Low Voltage ◽  
Light Transmission ◽  
Optical Response ◽  
Phase Delay ◽  
High Rate ◽  
Ferroelectric Liquid Crystals ◽  
Light Modulators ◽  
Director Reorientation ◽  
Smooth Dependence

This is a review of results from studying ferroelectric liquid crystals (FLCs) of a new type developed for fast low-voltage displays and light modulators. These materials are helix-free FLCs, which are characterized by spatially periodic deformation of smectic layers and a small value of spontaneous polarization (less than 50 nC/cm2). The FLC director is reoriented due to the motion of solitons at the transition to the Maxwellian mechanism of energy dissipation. A theoretical model is proposed for describing the FLC deformation and director reorientation. The frequency and field dependences of the optical response time are studied experimentally for modulation of light transmission, scattering, and phase delay with a high rate. The hysteresis-free nature and smooth dependence of the optical response on the external electric field in the frequency range up to 6 kHz is demonstrated, as well as bistable light scattering with memorization of an optical state for a time exceeding the switching time by up to 6 orders of magnitude. Due to the spatially inhomogeneous light phase delay, the ability of a laser beam to cause interference is effectively suppressed. The fastest FLCs under study are compatible with 3D, FLC on Silicon (FLCoS), and Field Sequential Colors (FSC) technologies.

Optical response of ferroelectric liquid crystals doped with metal nanoparticles

2013 ◽  
Vol 102 (6) ◽  
pp. 063115 ◽  
Author(s):  
Shashank Tripathi ◽  
Prasun Ganguly ◽  
D. Haranath ◽  
W. Haase ◽  
A. M. Biradar
Keyword(s):  
Liquid Crystals ◽  
Metal Nanoparticles ◽  
Optical Response ◽  
Ferroelectric Liquid Crystals

Dielectric versus optical response of chevron ferroelectric liquid crystals

2007 ◽  
Vol 34 (11) ◽  
pp. 1299-1306 ◽  
Author(s):  
W. Jeżewski ◽  
W. Kuczyński ◽  
J. Hoffmann
Keyword(s):  
Liquid Crystals ◽  
Optical Response ◽  
Ferroelectric Liquid Crystals

Synthesis of new ferroelectric liquid crystals

1978 ◽  
Vol 3 ◽  
pp. 139-143 ◽  
Author(s):  
P. Keller
Keyword(s):  
Liquid Crystals ◽  
Ferroelectric Liquid Crystals

Evidence of two new ordered smectic phases in ferroelectric liquid crystals

1978 ◽  
Vol 39 (5) ◽  
pp. 548-553 ◽  
Author(s):  
J. Doucet ◽  
P. Keller ◽  
A.M. Levelut ◽  
P. Porquet
Keyword(s):  
Liquid Crystals ◽  
Ferroelectric Liquid Crystals ◽  
Smectic Phases

Modified Method for Measuring the Magnitude of Spontaneous Polarization of Ferroelectric Liquid Crystals

2017 ◽  
Vol 9 (4) ◽  
pp. 04015-1-04015-5
Author(s):  
A. V. Kovalchuk ◽  
◽  
A. F. Shevchuk ◽  
Keyword(s):  
Liquid Crystals ◽  
Spontaneous Polarization ◽  
Ferroelectric Liquid Crystals ◽  
Modified Method

Second-order NLO response in chiral ferroelectric liquid crystals: Molecular and bulk consideration

2021 ◽  
pp. 115328
Author(s):  
Stijn van Cleuvenbergen ◽  
Griet Depotter ◽  
Koen Clays ◽  
Przemysław Kędziora
Keyword(s):  
Liquid Crystals ◽  
Second Order ◽  
Ferroelectric Liquid Crystals ◽  
Nlo Response

scholarly journals Optical Response Associated with the Orientation and Structure of Liquid Crystals with Respect to Phosphatidylcholine Concentration

Crystals ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 678
Author(s):  
Yuqi Han ◽  
Yan Jiang ◽  
Wei Guo ◽  
Bing Li ◽  
Lu Zhang ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Liquid Crystals ◽  
Reflectance Spectrum ◽  
Optical Response ◽  
The Self ◽  
Cholesteric Liquid Crystals ◽  
Anchoring Effect ◽  
Self Assembling ◽  
Sensitization Effect ◽  
Structure Of Liquid

Based on the anchoring effect due to the self-assembling behavior of the phospholipid molecules at the interface between the liquid crystal and water phases on the orientation of liquid crystals, the optical response associated with the orientation and structure of liquid crystals with respect to the concentration of 1,2-didodecanoyl-sn-glycero-3-phosphocholine solution has been investigated. The optical response owing to changes in the orientation and structure of the mixed cholesteric liquid crystals with respect to the change in the concentration of phosphatidylcholine has been obtained. Moreover, the feasibility of using as-prepared mixed cholesteric liquid crystals to measure the phosphatidylcholine concentration has been verified. A methodology to measure the reflectance spectrum by using mixed cholesteric liquid crystals to sensitize the phosphatidylcholine concentration has been further realized. The sensitization effect of the mixed cholesteric liquid crystals on the measurement of phosphatidylcholine concentration was also verified.

Colossal nonlinear optical response of liquid crystals

2018 ◽  
Vol 267 ◽  
pp. 67-72 ◽  
Author(s):  
F. Simoni ◽  
L. Lucchetti
Keyword(s):  
Liquid Crystals ◽  
Nonlinear Optical ◽  
Optical Response ◽  
Nonlinear Optical Response

Operating Characteristics of Optically Addressed Spatial Light Modulators Incorporating Distorted Helix Ferroelectric Liquid Crystals

1991 ◽  
Vol 30 (Part 1, No. 7) ◽  
pp. 1400-1404 ◽  
Author(s):  
Bruce Landreth ◽  
Chong-Chang Mao ◽  
Garret Moddel
Keyword(s):  
Liquid Crystals ◽  
Spatial Light Modulators ◽  
Operating Characteristics ◽  
Ferroelectric Liquid Crystals ◽  
Light Modulators
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