Reversible tuning of lasing in cholesteric liquid crystals controlled by light-emitting diodes

被引：58
作者：
Chilaya, Guram
Chanishvili, Andro
Petriashvili, Gia
Barberi, Riccardo
Bartolino, Roberto
Cipparrone, Gabriella
Mazzulla, Alfredo
Shibaev, Peter V.
机构：
[1] Univ Calabria, Licryl Lab, CNR INFM, Excellence Ctr CEMIF CAL, I-87036 Cosenza, Italy
[2] Univ Calabria, Dept Phys, I-87036 Cosenza, Italy
[3] Georgian Acad Sci, Inst Cybernet, GE-380060 Tbilisi, Georgia
[4] Fordham Univ, Dept Phys, Bronx, NY 10458 USA
来源：
ADVANCED MATERIALS | 2007年 / 19卷 / 04期
关键词：
D O I：
10.1002/adma.200600353
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The lasing wavelength of dye-doped cholesteric liquid-crystal lasers is optically tuned by the reversible photoisomerization of the azo- or azoxynematic components of the cholesteric mixture. The figure demonstrates that the laser can be tuned over a range of almost 70 nm. The nematic components are easily and reversibly isomerized by illumination from light-emitting diodes at 405 and 466 nm.
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页码：565 / +
页数：5
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