Dynamic studies of holographic gratings in dye-doped liquid-crystal films

被引：52

作者：

Fuh, AYG ^{[1
]}

Liao, CC ^{[1
]}

Hsu, KC ^{[1
]}

Lu, CL ^{[1
]}

Tsai, CY ^{[1
]}

机构：

[1] Natl Cheng Kung Univ, Dept Phys, Tainan 701, Taiwan

来源：

OPTICS LETTERS | 2001年 / 26卷 / 22期

关键词：

D O I：

10.1364/OL.26.001767

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The dynamic behavior of a holographic grating induced in a homeotropically aligned dye-doped liquid-crystal film is investigated. In the presence of an applied dc voltage, photoexcited azo dyes induce a photorefractive grating and then diffuse and are adsorbed onto cell substrates. The reorientation of liquid crystals as a result of adsorbed dyes leads to a phase grating that is phase shifted 90 degrees from the photorefractive grating. Competition of these two gratings induces two-beam coupling of the writing beams, initially transferring energy from beam I to beam 2 and then, after a pause, from beam 2 to beam 1. (C) 2001 Optical Society of America.

引用

页码：1767 / 1769

页数：3

共 11 条

[1] Light-induced surface sliding of the nematic director in liquid crystals [J].

Francescangeli, O ;

Slussarenko, S ;

Simoni, F ;

Andrienko, D ;

Reshetnyak, V ;

Reznikov, Y .

PHYSICAL REVIEW LETTERS, 1999, 82 (09) :1855-1858

[2] Fast optical recording in dye-doped polymer-dispersed liquid-crystal films [J].

Fuh, AYG ;

Liao, CC ;

Tsai, CY ;

Lu, CL ;

Hsieh, DM .

OPTICS LETTERS, 2001, 26 (07) :447-449

[3] Polymer-dispersed liquid crystal films for storing optical holographic images [J].

Fuh, AYG ;

Tsai, MS ;

Huang, CY ;

Ko, TC ;

Chien, LC .

OPTICAL AND QUANTUM ELECTRONICS, 1996, 28 (10) :1535-1541

[4] SURFACE-MEDIATED ALIGNMENT OF NEMATIC LIQUID-CRYSTALS WITH POLARIZED LASER-LIGHT [J].

GIBBONS, WM ;

SHANNON, PJ ;

SUN, ST ;

SWETLIN, BJ .

NATURE, 1991, 351 (6321) :49-50

[5] MASS DIFFUSION MEASUREMENTS IN LIQUID-CRYSTALS BY A NOVEL OPTICAL METHOD [J].

HERVET, H ;

URBACH, W ;

RONDELEZ, F .

JOURNAL OF CHEMICAL PHYSICS, 1978, 68 (06) :2725-2729

[6] ANOMALOUS OPTICAL FREEDERICKSZ TRANSITION IN AN ABSORBING LIQUID-CRYSTAL [J].

JANOSSY, I ;

LLOYD, AD ;

WHERRETT, BS .

MOLECULAR CRYSTALS AND LIQUID CRYSTALS, 1990, 179 :1-12

[7] HOLOGRAPHIC GRATING FORMATION IN DYE-DOPED AND FULLERENE C-60-DOPED NEMATIC LIQUID-CRYSTAL FILM [J].

KHOO, IC .

OPTICS LETTERS, 1995, 20 (20) :2137-2139

[8] OBSERVATION OF ORIENTATIONAL PHOTOREFRACTIVE EFFECTS IN NEMATIC LIQUID-CRYSTALS [J].

KHOO, IC ;

LI, H ;

LIANG, Y .

OPTICS LETTERS, 1994, 19 (21) :1723-1725

[9] Diffusion of photoexcited azo dye in a liquid-crystal host [J].

Saad, B ;

Denariez-Roberge, MM ;

Galstyan, TV .

OPTICS LETTERS, 1998, 23 (09) :727-729

[10] Light-induced director-controlled microassembly of dye molecules from a liquid crystal matrix [J].

Voloschenko, D ;

Lavrentovich, OD .

JOURNAL OF APPLIED PHYSICS, 1999, 86 (09) :4843-4846

← 1 2 →