Title
Low-threshold and high efficiency lasing upon band-edge excitation in a cholesteric liquid crystal
Abbreviated Journal Title
Appl. Phys. Lett.
Keywords
SPONTANEOUS-EMISSION; STOP BAND; LASER; GAP; ENHANCEMENT; WAVE; Physics, Applied
Abstract
A low threshold and high efficiency laser based on dye-doped cholesteric liquid crystals (CLCs) is demonstrated using an input excitation with the same handedness of circular polarization as the helical structure of the sample at the shorter wavelength band edge of the reflection band. The responsible mechanism originates from the dramatic increase of the optical density of state (DOS) at the band edges. The calculated DOS of the CLC system confirms the authors' experimental results.
Journal Title
Applied Physics Letters
Volume
90
Issue/Number
9
Publication Date
1-1-2007
Document Type
Article
DOI Link
Language
English
First Page
3
WOS Identifier
ISSN
0003-6951
Recommended Citation
Matsuhisa, Yuko; Huang, Yuhua; Zhou, Ying; Wu, Shin-Tson; Ozaki, Ryotaro; Takao, Yuuki; Fujii, Akihiko; and Ozaki, Masanori, "Low-threshold and high efficiency lasing upon band-edge excitation in a cholesteric liquid crystal" (2007). Faculty Bibliography 2000s. 7412.
https://stars.library.ucf.edu/facultybib2000/7412
Comments
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"This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This article appeared in the linked citation and may be found originally at Applied Physics Letters."