Supra-Nonlinear Photosensitive Liquid Crystals for Image Processing, Switchable holographic lens and optical limiting.

被引:2
作者
Khoo, IC [1 ]
Shih, MY [1 ]
Shishido, A [1 ]
机构
[1] Penn State Univ, Dept Elect Engn, University Pk, PA 16802 USA
来源
LIQUID CRYSTALS IV | 2000年 / 4107卷
关键词
D O I
10.1117/12.405318
中图分类号
O7 [晶体学];
学科分类号
0702 ; 070205 ; 0703 ; 080501 ;
摘要
We found that in nematic liquid crystals doped with methyl-red dye or an azobenzene liquid crystal, the orientational optical nonlinearity can be dramatically enhanced. A concise review of the fundamental mechanisms involved and some application in all-optical image processing, optical limiting and switchable storage lens holograms is presented.
引用
收藏
页码:151 / 159
页数:9
相关论文
共 28 条
[11]  
Khoo I. C., 1993, OPTICS NONLINEAR OPT
[12]   Optically induced space-charge fields, dc voltage, and extraordinarily large nonlinearity in dye-doped nematic liquid crystals [J].
Khoo, IC ;
Slussarenko, S ;
Guenther, BD ;
Shih, MY ;
Chen, P ;
Wood, WV .
OPTICS LETTERS, 1998, 23 (04) :253-255
[13]   Optical-dc-field induced space charge fields and photorefractive-like holographic grating formation in nematic liquid crystals [J].
Khoo, IC .
MOLECULAR CRYSTALS AND LIQUID CRYSTALS SCIENCE AND TECHNOLOGY SECTION A-MOLECULAR CRYSTALS AND LIQUID CRYSTALS, 1996, 282 :53-66
[14]   Orientational photorefractive effects in nematic liquid crystal films [J].
Khoo, IC .
IEEE JOURNAL OF QUANTUM ELECTRONICS, 1996, 32 (03) :525-534
[15]   OBSERVATION OF ORIENTATIONAL PHOTOREFRACTIVE EFFECTS IN NEMATIC LIQUID-CRYSTALS [J].
KHOO, IC ;
LI, H ;
LIANG, Y .
OPTICS LETTERS, 1994, 19 (21) :1723-1725
[16]  
Khoo IC, 1999, P IEEE, V87, P1897, DOI 10.1109/5.796353
[17]   Nonlinear optical liquid cored fiber array and liquid crystal film for ps-cw frequency agile laser optical limiting application [J].
Khoo, IC ;
Wood, MV ;
Guenther, BD ;
Shih, MY ;
Chen, PH ;
Chen, ZG ;
Zhang, XM .
OPTICS EXPRESS, 1998, 2 (12) :471-482
[18]  
KHOO IC, 1999, ELECT J, V4, P431
[19]  
KHOO IC, 2000, IN PRESS MOL CRYST L
[20]  
KHOO IC, 1998, SPIES INT S OPT SCI, V3475