Multiple excitation of localized surface plasmon to create a 10 nm × 10 nm strong optical spot using an Au nanoparticle array-based ridge waveguide | Zendy

Sung-Mook Kang | Zendy; Jin Han | Zendy; Taeseob Kim | Zendy; No-Cheol Park | Zendy; Kyoung-Su Park | Zendy; Byung-Kwon Min | Zendy; Young-Pil Park | Zendy

Open Access

Multiple excitation of localized surface plasmon to create a 10 nm × 10 nm strong optical spot using an Au nanoparticle array-based ridge waveguide

Author(s) -

Sung-Mook Kang,

Jin Han,

Taeseob Kim,

No-Cheol Park,

Kyoung-Su Park,

Byung-Kwon Min,

Young-Pil Park

Publication year - 2010

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.18.001576

Subject(s) - surface plasmon , optics , waveguide , ridge , excitation , materials science , full width at half maximum , finite difference time domain method , plasmon , surface plasmon polariton , optoelectronics , physics , paleontology , quantum mechanics , biology

We present a description of a multiple excitation of localized surface plasmons (LSPs) from an Au nanoparticle (NP) array-based ridge waveguide to create a small optical spot size with an extremely strong intensity. Using a numerical finite-difference time-domain method, we find that the optical intensity of the ridge waveguide with an Au NP array is about 700% higher than that of a simple ridge waveguide. Moreover, the spacing between the NPs plays an important role in the multiple excitation of LSPs. The spot size, calculated at FWHM, is 10 nm x 10 nm at a distance of 5 nm from the exit plane.

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