Lasing in Dye-Doped Cholesteric Liquid Crystals: Two New Tuning Strategies

Lasing in Dye-Doped Cholesteric Liquid Crystals: Two New Tuning Strategies

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,...

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Bibliographic Details
Published in:Advanced materials (Weinheim) Vol. 16; no. 9-10; pp. 791 - 795
Main Authors: Chanishvili, A., Chilaya, G., Petriashvili, G., Barberi, R., Bartolino, R., Cipparrone, G., Mazzulla, A., Oriol, L.
Format: Journal Article
Language:English
Published: Weinheim WILEY-VCH Verlag 17-05-2004
WILEY‐VCH Verlag
Subjects:
cholesteric
Doping
Doping, dye
dye
Lasing
Liquid crystals
Liquid crystals, cholesteric
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Summary: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).
Bibliography:The authors thank Merck for supplying liquid-crystal materials and chiral dopant, and Dr. E. Poetsch and Dr. W. Becker for helpful discussions concerning chiral dopants. This work has been partially supported by the contract of the Italian Ministry of Education, University and Research (MIUR) under the project "FIRB 2001" entitled "Carbon Based Microstructures and Nanostructures".
istex:27BCC62C2957CFF67EA073A04A7B4E4F8C90EE2B
ark:/67375/WNG-V8B1DFVX-8
ArticleID:ADMA200306542
The authors thank Merck for supplying liquid‐crystal materials and chiral dopant, and Dr. E. Poetsch and Dr. W. Becker for helpful discussions concerning chiral dopants. This work has been partially supported by the contract of the Italian Ministry of Education, University and Research (MIUR) under the project “FIRB 2001” entitled “Carbon Based Microstructures and Nanostructures”.
ISSN:0935-9648
1521-4095
DOI:10.1002/adma.200306542