Dual-frequency addressed hybrid-aligned nematic liquid crystal

Dual-frequency addressed hybrid-aligned nematic (HAN) liquid crystal cell is demonstrated as a variable optical attenuator at 1.55 μ m wavelength. By controlling the low- and high-frequency electric field, the dual-frequency liquid crystal (DFLC) molecules can be reoriented parallel or perpendicular...

Full description

Saved in:
Bibliographic Details
Published in:Applied physics letters 2004-10, Vol.85 (16), p.3354-3356
Main Authors: Lu, Yan-Qing, Liang, Xiao, Wu, Yung-Hsun, Du, Fang, Wu, Shin-Tson
Format: Article
Language:English
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Dual-frequency addressed hybrid-aligned nematic (HAN) liquid crystal cell is demonstrated as a variable optical attenuator at 1.55 μ m wavelength. By controlling the low- and high-frequency electric field, the dual-frequency liquid crystal (DFLC) molecules can be reoriented parallel or perpendicular to the substrates so that the maximum obtainable phase modulation is doubled. In comparison to a homogeneous cell, the DFLC HAN cell shows a lower operating voltage and faster response time. Furthermore, the DFLC HAN cell exhibits three stable states that have some applications such as ternary photonic devices.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.1809282