Theoretical and experimental investigation of strongly localized plasmons on triangular metal wedges for subwavelength waveguiding

D. F.P. Pile; T. Ogawa; D. K. Gramotnev; T. Okamoto; M. Haraguchi; M. Fukui; S. Matsuo

doi:10.1063/1.1991990

Theoretical and experimental investigation of strongly localized plasmons on triangular metal wedges for subwavelength waveguiding

D. F.P. Pile, T. Ogawa, D. K. Gramotnev, T. Okamoto, M. Haraguchi, M. Fukui, S. Matsuo

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282 Citations (Scopus)

Abstract

We report numerical analysis and experimental observation of strongly localized plasmons guided by a triangular metal wedge. Dispersion and dissipation of such wedge plasmons are analyzed using the finite-difference time-domain algorithm. Experimental observation is conducted by the end-fire excitation and near-field detection of the predicted plasmons on a 40° silver nanowedge. Good agreement with the theoretically predicted propagation distances is demonstrated. Differences between the theoretical and experimental field distribution are explained by insufficient resolution of the near-field optical probe.

Original language	English
Article number	061106
Journal	Applied Physics Letters
Volume	87
Issue number	6
DOIs	https://doi.org/10.1063/1.1991990
Publication status	Published - 2005
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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10.1063/1.1991990

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title = "Theoretical and experimental investigation of strongly localized plasmons on triangular metal wedges for subwavelength waveguiding",

abstract = "We report numerical analysis and experimental observation of strongly localized plasmons guided by a triangular metal wedge. Dispersion and dissipation of such wedge plasmons are analyzed using the finite-difference time-domain algorithm. Experimental observation is conducted by the end-fire excitation and near-field detection of the predicted plasmons on a 40° silver nanowedge. Good agreement with the theoretically predicted propagation distances is demonstrated. Differences between the theoretical and experimental field distribution are explained by insufficient resolution of the near-field optical probe.",

author = "Pile, {D. F.P.} and T. Ogawa and Gramotnev, {D. K.} and T. Okamoto and M. Haraguchi and M. Fukui and S. Matsuo",

note = "Funding Information: The authors gratefully acknowledge support from the Japan Society for the Promotion of Science and the High Performance Computing Division at the Queensland University of Technology.",

year = "2005",

doi = "10.1063/1.1991990",

language = "English",

volume = "87",

journal = "Applied Physics Letters",

issn = "0003-6951",

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T1 - Theoretical and experimental investigation of strongly localized plasmons on triangular metal wedges for subwavelength waveguiding

AU - Pile, D. F.P.

AU - Ogawa, T.

AU - Gramotnev, D. K.

AU - Okamoto, T.

AU - Haraguchi, M.

AU - Fukui, M.

AU - Matsuo, S.

N1 - Funding Information: The authors gratefully acknowledge support from the Japan Society for the Promotion of Science and the High Performance Computing Division at the Queensland University of Technology.

PY - 2005

Y1 - 2005

N2 - We report numerical analysis and experimental observation of strongly localized plasmons guided by a triangular metal wedge. Dispersion and dissipation of such wedge plasmons are analyzed using the finite-difference time-domain algorithm. Experimental observation is conducted by the end-fire excitation and near-field detection of the predicted plasmons on a 40° silver nanowedge. Good agreement with the theoretically predicted propagation distances is demonstrated. Differences between the theoretical and experimental field distribution are explained by insufficient resolution of the near-field optical probe.

AB - We report numerical analysis and experimental observation of strongly localized plasmons guided by a triangular metal wedge. Dispersion and dissipation of such wedge plasmons are analyzed using the finite-difference time-domain algorithm. Experimental observation is conducted by the end-fire excitation and near-field detection of the predicted plasmons on a 40° silver nanowedge. Good agreement with the theoretically predicted propagation distances is demonstrated. Differences between the theoretical and experimental field distribution are explained by insufficient resolution of the near-field optical probe.

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U2 - 10.1063/1.1991990

DO - 10.1063/1.1991990

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JF - Applied Physics Letters

IS - 6

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ER -

Theoretical and experimental investigation of strongly localized plasmons on triangular metal wedges for subwavelength waveguiding

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