Analysis of diffraction efficiency of TI-PLM and its potential in beam steering

2021 ◽  
Author(s):  
Chuan Luo ◽  
Jiafan Guan ◽  
Xianyue Deng ◽  
Yuzuru Takashima
Keyword(s):  
Diffraction Efficiency ◽  
Beam Steering

scholarly journals Diffraction efficiency of thin film holographic beam steering devices

2002 ◽  
Author(s):  
Charles M. Titus ◽  
John Pouch ◽  
Hung D. Nguyen ◽  
Felix Miranda ◽  
Philip J. Bos
Keyword(s):  
Thin Film ◽  
Diffraction Efficiency ◽  
Beam Steering

scholarly journals A Switchable Cholesteric Phase Grating with a Low Operating Voltage

Crystals ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 100
Author(s):  
Ho-Jin Sohn ◽  
Seung-Won Oh ◽  
Yeongyu Choi ◽  
Seong-Min Ji ◽  
Tae-Hoon Yoon
Keyword(s):  
Diffraction Efficiency ◽  
Beam Steering ◽  
Cholesteric Liquid Crystal ◽  
Grating Period ◽  
Operating Voltage ◽  
Phase Grating ◽  
Cholesteric Phase ◽  
Potential Applications ◽  
Device Applications ◽  
Diffraction Optics

We demonstrate a simple fabrication method of a uniform-lying-helix (ULH) cholesteric liquid crystal (ChLC) cell for phase grating device applications. To utilize a stable ULH state, we set the pitches of ChLCs as half of the cell gap to obtain the fingerprint texture with homeotropic anchoring. With the given grating period, the diffraction efficiency of the ULH cell can be maximized by optimizing the cell gap. We found that the fabricated grating device can provide a large diffraction angle of 10° and a low operating voltage of 3 V with a diffraction efficiency of 30%. We expect potential applications of the device for diffraction optics, optical interconnects, and beam steering devices.

Symmetric-pair antennas for beam steering, direction finding or isotropic-reception gain

1991 ◽  
Vol 138 (4) ◽  
pp. 368 ◽  
Author(s):  
R. Benjamin ◽  
W. Titze ◽  
P.V. Brennan ◽  
H.D. Griffiths
Keyword(s):  
Beam Steering ◽  
Direction Finding ◽  
Symmetric Pair

Electromagnetically Driven 2-axis Optical Beam Steering MEMS Mirror and Its Dependence of Actuation on Magnetic Field

2010 ◽  
Vol 130 (4) ◽  
pp. 107-112 ◽  
Author(s):  
Yoshiyuki Watanabe ◽  
Yutaka Abe ◽  
Shinnosuke Iwamatsu ◽  
Seiya Kobayashi ◽  
Yoshiyuki Takahashi ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Beam Steering ◽  
Optical Beam

An Optimized Scheme for Optical Phased Array Beam Steering Controlled by Wavelength

PIERS Online ◽  
2007 ◽  
Vol 3 (2) ◽  
pp. 127-131 ◽  
Author(s):  
Ying Zhao ◽  
Xiaozhou Yang ◽  
Qin Cai ◽  
Weiwei Hu
Keyword(s):  
Phased Array ◽  
Beam Steering ◽  
Optical Phased Array
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