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Plasmon resonance of silver micro–sphere in fiber taper
Author(s) -
Jin Li,
Hanyang Li,
Kaiyang Wang,
Xuenan Zhang,
ChengBao Yao,
Yundong Zhang,
Ping Yuan
Publication year - 2013
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.21.021414
Subject(s) - surface plasmon resonance , optics , materials science , resonance (particle physics) , plasmon , surface plasmon , localized surface plasmon , wavelength , fiber , optical fiber , surface plasmon polariton , optoelectronics , physics , nanotechnology , atomic physics , nanoparticle , composite material
We have experimentally studied the plasmon resonance phenomenon of a silver micro-sphere with a diameter of 2.3 μm in cone-shaped air cavity of a hollow fiber taper. To take insight into the plasmon resonance phenomenon, we move the micro-sphere along the fiber and observe the significant shift of the resonance peak. We also explore the light response in both infrared and visible wavelength band by finite difference time domain method. The significant variations of the magnetic and power field distribution are observed. The interesting results imply that the configuration has great potential in optical sensors and color filters.

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