Dual-frequency addressed hybrid-aligned nematic liquid crystal
Abbreviated Journal Title
Appl. Phys. Lett.
DEFORMATION; MODULATORS; AMPLITUDE; POLYMER; VOLTAGE; Physics, Applied
Dual-frequency addressed hybrid-aligned nematic (HAN) liquid crystal cell is demonstrated as a variable optical attenuator at 1.55 mum 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. (C) 2004 American Institute of Physics.
Applied Physics Letters
"Dual-frequency addressed hybrid-aligned nematic liquid crystal" (2004). Faculty Bibliography 2000s. 4564.