Liquid crystal quantized GRIN lens and its application to AF systems

2009 ◽  
Author(s):  
Nobuyuki Hashimoto ◽  
Makoto Kurihara
Keyword(s):  
Liquid Crystal ◽  
Grin Lens

scholarly journals In-line FINCH super resolution digital holographic fluorescence microscopy using a high efficiency transmission liquid crystal GRIN lens

2013 ◽  
Vol 38 (24) ◽  
pp. 5264 ◽  
Author(s):  
Gary Brooker ◽  
Nisan Siegel ◽  
Joseph Rosen ◽  
Nobuyuki Hashimoto ◽  
Makoto Kurihara ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Fluorescence Microscopy ◽  
High Efficiency ◽  
Super Resolution ◽  
Grin Lens

scholarly journals Tilted LCD Pixel With Liquid Crystal GRIN Lens for Two-Dimensional/Three-Dimensional Switchable Display

2019 ◽  
Vol 11 (4) ◽  
pp. 1-9
Author(s):  
Qungang Ma ◽  
Jian Zhao ◽  
Shengdong Zhang ◽  
Ling Yuan ◽  
Jun Xia ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Three Dimensional ◽  
Two Dimensional ◽  
Grin Lens

P-104: Refractive Index Distribution Analysis of Liquid Crystal GRIN Lens for Autostereoscopic 2D/3D Switchable Displays

2012 ◽  
Vol 43 (1) ◽  
pp. 1452-1455 ◽  
Author(s):  
Tatsuya Sugita ◽  
Shinichiro Oka ◽  
Tomohiko Naganuma ◽  
Terunori Saito ◽  
Shinichi Komura ◽  
...  
Keyword(s):  
Refractive Index ◽  
Liquid Crystal ◽  
Distribution Analysis ◽  
Refractive Index Distribution ◽  
Grin Lens ◽  
Index Distribution

scholarly journals Design of polarization-insensitive multi-electrode GRIN lens with a blue-phase liquid crystal

2011 ◽  
Vol 19 (18) ◽  
pp. 17402 ◽  
Author(s):  
Chao-Te Lee ◽  
Yan Li ◽  
Hoang-Yan Lin ◽  
Shin-Tson Wu
Keyword(s):  
Liquid Crystal ◽  
Grin Lens ◽  
Polarization Insensitive ◽  
Phase Liquid ◽  
Blue Phase

Freeze-fracture TEM of the helical smectic A* phase

1992 ◽  
Vol 50 (1) ◽  
pp. 278-279
Author(s):  
K.J. Ihn ◽  
R. Pindak ◽  
J. A. N. Zasadzinski
Keyword(s):  
Liquid Crystal ◽  
Grain Boundary ◽  
Grain Boundaries ◽  
Freeze Fracture ◽  
Smectic Phase ◽  
Layer Spacing ◽  
Screw Dislocations ◽  
Smectic A ◽  
Smectic Phases ◽  
Discrete Amount

A new liquid crystal (called the smectic-A* phase) that combines cholesteric twist and smectic layering was a surprise as smectic phases preclude twist distortions. However, the twist grain boundary (TGB) model of Renn and Lubensky predicted a defect-mediated smectic phase that incorporates cholesteric twist by a lattice of screw dislocations. The TGB model for the liquid crystal analog of the Abrikosov phase of superconductors consists of regularly spaced grain boundaries of screw dislocations, parallel to each other within the grain boundary, but rotated by a fixed angle with respect to adjacent grain boundaries. The dislocations divide the layers into blocks which rotate by a discrete amount, Δθ, given by the ratio of the layer spacing, d, to the distance between grain boundaries, lb; Δθ ≈ d/lb (Fig. 1).

Attractive mode force microscopy of chiral liquid crystal surfaces

1992 ◽  
Vol 50 (1) ◽  
pp. 268-269
Author(s):  
B.D. Terris ◽  
R. J. Twieg ◽  
C. Nguyen ◽  
G. Sigaud ◽  
H. T. Nguyen
Keyword(s):  
Liquid Crystal ◽  
Crystal Surfaces ◽  
Free Surfaces ◽  
Control Range ◽  
Force Microscopy ◽  
Liquid Crystal Films ◽  
Chiral Liquid Crystal ◽  
Crystal Films ◽  
Electrostatic Charging ◽  
And Shifts

We have used a force microscope in the attractive, or noncontact, mode to image a variety of surfaces. In this mode, the microscope tip is oscillated near its resonant frequency and shifts in this frequency due to changes in the surface-tip force gradient are detected. We have used this technique in a variety of applications to polymers, including electrostatic charging, phase separation of ionomer surfaces, and crazing of glassy films.Most recently, we have applied the force microscope to imaging the free surfaces of chiral liquid crystal films. The compounds used (Table 1) have been chosen for their polymorphic variety of fluid mesophases, all of which exist within the temperature control range of our force microscope.

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