Mutual mode control of short- and long-range surface plasmons | Zendy

Junichi Takahara | Zendy; Masashi Miyata | Zendy

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Mutual mode control of short- and long-range surface plasmons

Author(s) -

Junichi Takahara,

Masashi Miyata

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.21.027402

Subject(s) - surface plasmon , surface plasmon polariton , plasmon , optics , equilibrium mode distribution , radiation mode , materials science , excitation , mode (computer interface) , waveguide , surface wave , optoelectronics , range (aeronautics) , localized surface plasmon , slab , single mode optical fiber , physics , optical fiber , quantum mechanics , geophysics , computer science , composite material , operating system

A symmetric metal slab waveguide simultaneously supports two opposite types of propagation mode similar to a metal film: short-range surface plasmon (SRSP) like mode and long-range surface plasmon (LRSP) like mode. The strong field confinement of SRSP-like mode plays a crucial role for nano-optical integrated circuits in spite of short propagation length. In order to avoid the trade-off between field confinement and propagation length, we demonstrate selective mode excitation and mutual mode conversion for nanofocusing mediated by LRSP-like mode.

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