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”.
Lasing in Dye-Doped Cholesteric Liquid Crystals: Two New Tuning Strategies †
Article first published online: 19 MAY 2004
Copyright © 2004 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Volume 16, Issue 9-10, pages 791–795, May, 2004
How to Cite
Chanishvili, A., Chilaya, G., Petriashvili, G., Barberi, R., Bartolino, R., Cipparrone, G., Mazzulla, A. and Oriol, L. (2004), Lasing in Dye-Doped Cholesteric Liquid Crystals: Two New Tuning Strategies . Adv. Mater., 16: 791–795. doi: 10.1002/adma.200306542
- Issue published online: 19 MAY 2004
- Article first published online: 19 MAY 2004
- Manuscript Accepted: 24 FEB 2004
- Manuscript Received: 27 NOV 2003
- Doping, dye;
- Liquid crystals, cholesteric
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).