Ferroelectric Liquid Crystals for Nonlinear Optics:  Orientation of the Disperse Red 1 Chromophore along the Ferroelectric Liquid Crystal Polar Axis†

1996 ◽  
Vol 118 (5) ◽  
pp. 1211-1212 ◽  
Author(s):  
David M. Walba ◽  
Daniel J. Dyer ◽  
Teresa Sierra ◽  
Peter L. Cobben ◽  
Renfan Shao ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Liquid Crystals ◽  
Nonlinear Optics ◽  
Polar Axis ◽  
Ferroelectric Liquid Crystal ◽  
Ferroelectric Liquid Crystals ◽  
Disperse Red 1

scholarly journals The concept of biaxial surface potential and polymer aligning layers in electro-optical cells based on helical nanostructures of ferroelectric liquid crystal

2021 ◽  
Vol 2056 (1) ◽  
pp. 012044
Author(s):  
T P Tkachenko ◽  
A A Zhukov ◽  
E P Pozhidaev
Keyword(s):  
Liquid Crystal ◽  
Liquid Crystals ◽  
Surface Potential ◽  
Ferroelectric Liquid Crystal ◽  
Alignment Quality ◽  
Ferroelectric Liquid Crystals ◽  
Helical Pitch

Abstract The paper considers the possibility of controlling the alignment quality of helical nanostructures of ferroelectric liquid crystals (FLCs) within the concept of biaxial surface potential due to variation the FLCs helical pitch p0 and polymer aligning layers structures.

Microphase-Stabilized Ferroelectric Liquid Crystals (MSFLC):  Bistable Switching of Ferroelectric Liquid Crystal−Coil Diblock Copolymers

1998 ◽  
Vol 10 (6) ◽  
pp. 1538-1545 ◽  
Author(s):  
Guoping Mao ◽  
Jianguo Wang ◽  
Christopher K. Ober ◽  
Martin Brehmer ◽  
Mary Jane O'Rourk ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Liquid Crystals ◽  
Diblock Copolymers ◽  
Ferroelectric Liquid Crystal ◽  
Ferroelectric Liquid Crystals ◽  
Bistable Switching

scholarly journals Photo-Aligned Ferroelectric Liquid Crystal Devices with Novel Electro-Optic Characteristics

Crystals ◽  
2020 ◽  
Vol 10 (7) ◽  
pp. 563
Author(s):  
Vladimir Chigrinov ◽  
Qi Guo ◽  
Aleksey Kudreyko
Keyword(s):  
Liquid Crystal ◽  
Liquid Crystals ◽  
Berry Phase ◽  
Photonic Devices ◽  
Ferroelectric Liquid Crystal ◽  
Optical Elements ◽  
Ferroelectric Liquid Crystals ◽  
Liquid Crystal Devices ◽  
Alignment Technique ◽  
Photo Alignment

This paper examines different applications of ferroelectric liquid crystal devices based on photo-alignment. Successful application of the photo-alignment technique is considered to be a critical breakthrough. A variety of display and photonic devices with azo dye aligned ferroelectric liquid crystals is presented: smart glasses, liquid crystal Pancharatnam–Berry phase optical elements, 2D/3D switchable lenses, and laser therapy devices. Comparison of electro-optical behavior of ferroelectric liquid crystals is described considering the performance of devices. This paper facilitates the optimization of device design, and broadens the possible applications in the display and photonic area.

scholarly journals Cusp Catastrophe Model for Description of Bistability in Ferroelectric Liquid Crystals

2014 ◽  
Vol 2014 ◽  
pp. 1-5 ◽  
Author(s):  
Nail Migranov ◽  
Aleksey Kudreyko ◽  
Denis Kondratyev
Keyword(s):  
Liquid Crystal ◽  
Liquid Crystals ◽  
Theoretical Approach ◽  
Catastrophe Theory ◽  
Azimuthal Angle ◽  
Cusp Catastrophe ◽  
Ferroelectric Liquid Crystal ◽  
Ferroelectric Liquid Crystals ◽  
Catastrophe Model ◽  
Cusp Catastrophe Model

We propose a new theoretical approach for description of the equilibrium and bistable states of ferroelectric liquid crystal. A sample of ferroelectric liquid crystal is considered in the “bookshelf” geometry under the influence of electric field. Continuum and perturbation theories are used in order to establish the relation between the scale coefficients in the expansion for the azimuthal angle. The equilibrium states of ferroelectric SmC* are determined in the framework of the catastrophe theory.

Ferroelectric Liquid Crystals for Nonlinear Optics: can we Really do It?

1995 ◽  
Vol 392 ◽  
Author(s):  
David M. Walba ◽  
Daniel J. Dyer ◽  
Peter L. Cobben ◽  
Teresa Sierra ◽  
James A. Rego ◽  
...  
Keyword(s):  
Liquid Crystals ◽  
High Speed ◽  
Polar Axis ◽  
Ferroelectric Liquid Crystals ◽  
Polar Structure ◽  
Molecular Dipole ◽  
Electro Optic ◽  
Interesting Candidate ◽  
Disperse Red 1 ◽  
Initial Results

AbstractFerroelectric liquid crystals (FLCs) are true liquids with a thermodynamically stable polar structure. Furthermore, in some systems excellent polar stereocontrol has been demonstrated (> 80% of the molecular dipole oriented along the polar axis with infinite “thermal stability”). These properties make FLCs an interesting candidate for second order NLO applications. However, until now the orientation of organic functional arrays with “large β”, typified by the disperse red 1 (DRI) chromophore, has not been demonstrated.Herein we report the initial results of a study directed towards providing a solution to this problem. Specifically, a new FLC dopant wherein the DRI chromophore (p-nitro-p'-dialkyl-aminoazobenzene unit) is oriented along the polar axis in FLC mixtures up to 30% by weight is described. These results suggest that it will be possible to obtain FLCs with good stereocontrolled orientation of large β functional arrays. Given that hybrid VLSI silicon/FLC optical chips are under intense investigation as micro-displays, and manufacturing issues for this class of devices are being addressed in the display context, the materials presented here suggest VLSI/FLC chips may be useful as high speed electro-optic modulators as well.

scholarly journals Ferroelectric liquid crystals with sub-wavelength helix nanostructure pitch for the generation of axial-symmetric vortex light fields

2019 ◽  
Vol 220 ◽  
pp. 01005
Author(s):  
Svetlana Kotova ◽  
Evgeny Pozhidaev ◽  
Sergey Samagin ◽  
Vladimir Kesaev ◽  
Aleksandra Mayorova
Keyword(s):  
Liquid Crystal ◽  
Liquid Crystals ◽  
Light Fields ◽  
Phase Plate ◽  
Ferroelectric Liquid Crystal ◽  
Axially Symmetric ◽  
Ferroelectric Liquid Crystals ◽  
Oriented Layer ◽  
Spiral Phase ◽  
Sub Wavelength

Experimental results of the formation of axially symmetric vortex light fields with a frequency of up to 2 kilohertz are presented. The results were obtained by using a 12-sector spiral phase plate (SPP) based on a planar-oriented layer of a 50 μm-thick ferroelectric liquid crystal (FLC), having the spiral nanostructure pitch substantially less than 100 nm.

Ferroelectric Liquid Crystals For Non-Display Applications

1999 ◽  
Vol 559 ◽  
Author(s):  
W. Haase ◽  
D. Ganzke ◽  
E. P. Pozhidaev
Keyword(s):  
Liquid Crystal ◽  
Liquid Crystals ◽  
Ferroelectric Liquid Crystal ◽  
Ferroelectric Liquid Crystals ◽  
Liquid Crystal Materials

ABSTRACTA brief review of non-display devises based on ferroelectric liquid crystals (FLC‘s) is presented. The development of ferroelectric liquid crystal materials and corresponding electrooptical elements for non-display applications have been considered.

Main-Chain Ferroelectric Liquid Crystal Polymers for Electronic Nonlinear Optics Applications 1

2004 ◽  
Vol 309 (1) ◽  
pp. 77-82 ◽  
Author(s):  
David M. Walba ◽  
Lei Xiao ◽  
Eva Korblova ◽  
Patrick Keller ◽  
Richard Shoemaker ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Nonlinear Optics ◽  
Main Chain ◽  
Liquid Crystal Polymers ◽  
Ferroelectric Liquid Crystal
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