Polymer-stabilized diffraction gratings from cholesteric liquid crystals

被引：54

作者：

Lee, SN ^{[1
]}

Chien, LC

Sprunt, S

机构：

[1] Kent State Univ, Inst Liquid Crystal, Kent, OH 44242 USA

[2] Kent State Univ, Dept Chem Phys, Kent, OH 44242 USA

[3] Kent State Univ, Dept Phys, Kent, OH 44242 USA

来源：

APPLIED PHYSICS LETTERS | 1998年 / 72卷 / 08期

关键词：

D O I：

10.1063/1.120925

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We report the use of a low concentration polymer network to stabilize electric field-induced diffraction gratings in cholesteric liquid crystals. The stabilized gratings can be electrically switched between a zero-field "on" state, which exhibits approximately 75% diffraction efficiency, and a moderate field (typically 3 V/mu m) "off" state. Grating spacings between 1.7 and 30 mu m are obtained in a 10 mu m thick cell by variation of the concentration of chiral dopant used to form the cholesteric liquid crystal. (C) 1998 American Institute of Physics.

引用

页码：885 / 887

页数：3

共 8 条

[1]

CHIGRINOV VG, 1979, ZH EKSP TEOR FIZ, V50, P994

[2]

DEGENNES PG, 1993, PHYSICS LIQUID CRYST, P283

[3] OBSERVATION OF THE PHOTOREFRACTIVE EFFECT IN A POLYMER [J].

DUCHARME, S ;

SCOTT, JC ;

TWIEG, RJ ;

MOERNER, WE .

PHYSICAL REVIEW LETTERS, 1991, 66 (14) :1846-1849

[4]

HOCHGESAND R, UNPUB HELICAL TWISTI

[5] Switchable diffractive cholesteric gratings [J].

Subacius, D ;

Bos, PJ ;

Lavrentovich, OD .

APPLIED PHYSICS LETTERS, 1997, 71 (10) :1350-1352

[6] ELECTRICALLY SWITCHABLE VOLUME GRATINGS IN POLYMER-DISPERSED LIQUID-CRYSTALS [J].

SUTHERLAND, RL ;

TONDIGLIA, VP ;

NATARAJAN, LV ;

BUNNING, TJ ;

ADAMS, WW .

APPLIED PHYSICS LETTERS, 1994, 64 (09) :1074-1076

[7]

Yang D K., 1996, Liquid Crystals in Complex Geometries eds

[8] CHOLESTERIC LIQUID-CRYSTAL POLYMER DISPERSION FOR HAZE-FREE LIGHT SHUTTERS [J].

YANG, DK ;

CHIEN, LC ;

DOANE, JW .

APPLIED PHYSICS LETTERS, 1992, 60 (25) :3102-3104

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