The phase-response effect of size-dependent optical enhancement in a single nanoparticle | Zendy

Chen-Han Huang | Zendy; Hsing-Ying Lin | Zendy; Cheng-Hsiang Lin | Zendy; HsiangChen Chui | Zendy; Yun-Chiang Lan | Zendy; ShiWei Chu | Zendy

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The phase-response effect of size-dependent optical enhancement in a single nanoparticle

Author(s) -

Chen-Han Huang,

Hsing-Ying Lin,

Cheng-Hsiang Lin,

HsiangChen Chui,

Yun-Chiang Lan,

ShiWei Chu

Publication year - 2008

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.16.009580

Subject(s) - near field scanning optical microscope , materials science , optics , surface plasmon , plasmon , surface plasmon resonance , nanoparticle , phase (matter) , optical microscope , silver nanoparticle , surface plasmon polariton , excitation , nanostructure , optoelectronics , nanotechnology , physics , scanning electron microscope , quantum mechanics

We demonstrate detailed simulations and experiments of near-field phase-response in a single silver nanoparticle. The plasmon-photon interaction is directly observed in the vicinity of silver nanoparticles through a near-field scanning optical microscope (NSOM). Our results manifest the correlation of phase-response and size-dependent optical enhancement. Detailed interference behaviors between optical excitation and plasmon mediated re-radiation are revealed on a single particle basis. This observation facilitates nano-applications in controlling the spatial distribution of surface plasmon (SP) modes by means of nanostructures.

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