Spatially band-tunable color-cone lasing emission in a dye-doped cholesteric liquid crystal with a photoisomerizable chiral dopant
Optics Letters, Vol. 35, Issue 9, pp. 1398-1400 (2010)
http://dx.doi.org/10.1364/OL.35.001398
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Abstract
This study investigates a spatially band-tunable color-cone lasing emission (CCLE) based on a dye-doped cholesteric liquid crystal with a photoisomerizable chiral dopant (IBM). Experimental results show that the lasing band of the formed CCLE of the cell with a photoinduced pitch gradient can be spatially tuned among various color regions by adjusting the pumped position of the cell. The spatially band tunability of the laser results from the UV-irradiation-induced decrease of the helical twisting power of IBM via
© 2010 Optical Society of America
OCIS Codes
(140.3490) Lasers and laser optics : Lasers, distributed-feedback
(140.3600) Lasers and laser optics : Lasers, tunable
(160.3710) Materials : Liquid crystals
(230.3720) Optical devices : Liquid-crystal devices
ToC Category:
Materials
History
Original Manuscript: January 13, 2010
Revised Manuscript: February 27, 2010
Manuscript Accepted: March 10, 2010
Published: April 26, 2010
Citation
C.-R. Lee, S.-H. Lin, H.-S. Ku, J.-H. Liu, P.-C. Yang, C.-Y. Huang, H.-C. Yeh, T.-D. Ji, and C.-H. Lin, "Spatially band-tunable color-cone lasing emission in a dye-doped cholesteric liquid crystal with a photoisomerizable chiral dopant," Opt. Lett. 35, 1398-1400 (2010)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-35-9-1398
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