Electric field controlled dynamic holograms on polarization gratings in a ferroelectric liquid crystal

1998 ◽  
Vol 73 (3) ◽  
pp. 279-281 ◽  
Author(s):  
B. Saad ◽  
L. Dinescu ◽  
R. P. Lemieux ◽  
T. V. Galstyan
Keyword(s):  
Liquid Crystal ◽  
Electric Field ◽  
Ferroelectric Liquid Crystal ◽  
Polarization Gratings

scholarly journals 21Ne and 131Xe NMR study of electric field gradients and multinuclear NMR study of the composition of a ferroelectric liquid crystal

2018 ◽  
Vol 149 (23) ◽  
pp. 234901 ◽  
Author(s):  
Susanna K. Ahola ◽  
Petri Ingman ◽  
Reino Laatikainen ◽  
Jari Sinkkonen ◽  
Jukka Jokisaari
Keyword(s):  
Liquid Crystal ◽  
Electric Field ◽  
Ferroelectric Liquid Crystal ◽  
Electric Field Gradients ◽  
Multinuclear Nmr ◽  
Field Gradients ◽  
Nmr Study

scholarly journals ELECTRO-OPTICAL SWITCHING OF THE MAIN OPTICAL AXIS OF A FERROELECTRIC LIQUID CRYSTAL SPIRAL NANOSTRUCTUREIN A PLANAR-ORIENTED DISPLAY CELL

Doklady BGUIR ◽  
2019 ◽  
pp. 21-27
Author(s):  
E. P. Pozhidaev ◽  
T. P. Tkachenko ◽  
A. V. Kuznetsov ◽  
I. N. Kompanets
Keyword(s):  
Liquid Crystal ◽  
Electric Field ◽  
Optical Switching ◽  
Optical Axis ◽  
Modulation Frequency ◽  
Light Transmittance ◽  
Weak Electric Field ◽  
Ferroelectric Liquid Crystal ◽  
Light Modulation ◽  
Small Pitch

In a known display cell with the nematic liquid crystal (NLC) and interdigital electrodes on one of the glass substrates, the “In-Plane Switching” (IPS) mode is implemented, in which the NLC main optical axis reorients in a plane parallel to substrates, providing the most correct color reproduction at different angles view, up to 178 ° horizontally and vertically. Unfortunately, the creation of interdigital metal electrodes complicates and increases the technological process cost and causes a decrease in image contrast. At the same time, experimental results and calculations based on classical electro-optics of crystals indicate that electrooptical switching in the IPS mode is a natural and intrinsic feature of a conventional (with continuous electrodes) display cell with a planar-oriented layer of the ferroelectric liquid crystal (FLC), in which the effect of the deformed (by the electric field) helix FLC nanostructure is realized (DHF effect). In such a cell, the reorientation of the main optical axis under the influence of a weak electric field also occurs in the substrate plane if the FLC has a small pitch (about 100 nm or less) and a large tilt angle of molecules in the layer (about 38 ° or more). The dependences of the FLC cell light transmittance measured in this work, confirmed the achievement of the IPS electro-optical mode in the DHF FLC cell; moreover, the light modulation frequency was 1 kHz. Thus, while maintaining all the advantages of the IPS mode known in NLC, its implementation in FLC allows additionally obtaining technological advantages and multiple increase in modulation frequency.

Electric field tuning of ferroelectric liquid-crystal microlaser

2020 ◽  
Author(s):  
Anna V. Ryzhkova ◽  
Pratibha Ramarao ◽  
Maryam Nikkhou ◽  
Igor Muševič
Keyword(s):  
Liquid Crystal ◽  
Electric Field ◽  
Ferroelectric Liquid Crystal
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