Band-tunable color cone lasing emission based on dye-doped cholesteric liquid crystals with various pitches and a pitch gradient | Zendy

C.-R. Lee | Zendy; S.-H. Lin | Zendy; H.-C. Yeh | Zendy; T.-D. Ji | Zendy

Open Access

Band-tunable color cone lasing emission based on dye-doped cholesteric liquid crystals with various pitches and a pitch gradient

Author(s) -

C.-R. Lee,

S.-H. Lin,

H.-C. Yeh,

T.-D. Ji

Publication year - 2009

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.17.022616

Subject(s) - lasing threshold , materials science , optics , dye laser , cholesteric liquid crystal , doping , optoelectronics , liquid crystal , laser , cone (formal languages) , physics , wavelength , algorithm , computer science

This study elucidates, for the first time, a novel band-tunable color cone lasing emission (CCLE) based on dye-doped cholesteric liquid crystal (DDCLC) films with various pitches. For several CLC cells with different pitches it was shown experimentally that the lasing band on the CCLE can be tuned among various color regions measured within different angular ranges. Some important features of the tunable CCLE are also identified and discussed. A spatially band-tunable color cone laser, based on a single DDCLC with a gradient pitch, is developed as a real application.

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