Lasing in dye-doped cholesteric liquid crystals: Two new tuning strategies

被引:109
作者
Chanishvili, A
Chilaya, G
Petriashvili, G
Barberi, R
Bartolino, R
Cipparrone, G [1 ]
Mazzulla, A
Oriol, L
机构
[1] Univ Calabria, Dept Phys, Licryl Liquid Crystals Lab, Res Unit Cosenza, I-87036 Arcavacata Di Rende, Italy
[2] Georgian Acad Sci, Inst Cybernet, GE-380086 Tbilisi, Georgia
[3] Univ Zaragoza, CSIC, ICMA, Quim Organ Fac Ciencias, E-50009 Zaragoza, Spain
关键词
D O I
10.1002/adma.200306542
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Tuning of a dye-doped cholesteric liquid crystal mirrorless laser in the violet-ultraviolet wavelength range is achieved using two different strategies for controlling the periodicity of the cholesteric helical structures. Both methods are shown produce a shift of the lasing wavelength by 30-40 nm, and smooth variation of the helical pitch can be achieved (see Figure).
引用
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页码:791 / +
页数:6
相关论文
共 28 条
[1]   How doping a cholesteric liquid crystal with polymeric dye improves an order parameter and makes possible low threshold lasing [J].
Araoka, F ;
Shin, KC ;
Takanishi, Y ;
Ishikawa, K ;
Takezoe, H ;
Zhu, ZG ;
Swager, TM .
JOURNAL OF APPLIED PHYSICS, 2003, 94 (01) :279-283
[2]   New chiral photochromic menthone-containing homopolymers and copolymers-synthesis, phase behaviour and photo-optical properties [J].
Bobrovsky, AY ;
Boiko, NI ;
Shibaev, VP .
LIQUID CRYSTALS, 1999, 26 (12) :1749-1765
[3]   Cholesteric mixtures with photochemically tunable, circularly polarized fluorescence [J].
Bobrovsky, AY ;
Boiko, NI ;
Shibaev, VP ;
Wendorff, JH .
ADVANCED MATERIALS, 2003, 15 (04) :282-287
[4]   Lasing in a three-dimensional photonic crystal of the liquid crystal blue phase II [J].
Cao, WY ;
Muñoz, A ;
Palffy-Muhoray, P ;
Taheri, B .
NATURE MATERIALS, 2002, 1 (02) :111-113
[5]   Lasing from a Forster transfer fluorescent dye couple dissolved in a chiral nematic liquid crystal [J].
Chambers, M ;
Fox, M ;
Grell, M ;
Hill, J .
ADVANCED FUNCTIONAL MATERIALS, 2002, 12 (11-12) :808-810
[6]   Phototunable lasing in dye-doped cholesteric liquid crystals [J].
Chanishvili, A ;
Chilaya, G ;
Petriashvili, G ;
Barberi, R ;
Bartolino, R ;
Cipparrone, G ;
Mazzulla, A ;
Oriol, L .
APPLIED PHYSICS LETTERS, 2003, 83 (26) :5353-5355
[7]  
CHANISHVILI A, P 19 INT LIQ CRYST C
[8]  
CHANISHVILI A, 2003, P 7 EUR C LIQ CRYST
[9]  
Chilaya G, 2001, PART ORDER, P159, DOI 10.1007/0-387-21642-1_6
[10]   Effect of various external factors and pretransitional phenomena on structural transformations in cholesteric liquid crystals [J].
Chilaya, GS .
CRYSTALLOGRAPHY REPORTS, 2000, 45 (05) :871-886