Surface plasmon-enhanced lasing in dye-doped cholesteric liquid crystals | Zendy

Cheng-Yu Shih | Zendy; Hui-Chen Yeh | Zendy

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Surface plasmon-enhanced lasing in dye-doped cholesteric liquid crystals

Author(s) -

Cheng-Yu Shih,

Hui-Chen Yeh

Publication year - 2012

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.20.020698

Subject(s) - materials science , lasing threshold , surface plasmon , surface plasmon resonance , dye laser , plasmon , optics , optoelectronics , localized surface plasmon , surface plasmon polariton , excitation , wavelength , doping , laser , nanoparticle , nanotechnology , physics , electrical engineering , engineering

This study shows the results of a photonic band-edge laser using dye-doped cholesteric liquid crystals (CLCs) combined with silver (Ag) nanoparticles. When the Ag nanoparticle surface plasmon resonance wavelength matched the excitation source wavelength, the large optical fields provided by surface plasmons increased the fluorescence of dye molecules by enhancing the molecular excitation rate, achieving a low lasing threshold and high pumping efficiency.

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