Broadband Terahertz Plasmonic Response of Touching InSb Disks

The plasmonic behavior of dimers of touching semiconductor disks is studied experimentally in the difficult‐to‐realize regime where the disks are only marginally overlapping. Previous theoretical studies have shown that this geometry exhibits a highly efficient broadband response that may be very pr...

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Veröffentlicht in:Advanced materials (Weinheim) 2012-09, Vol.24 (35), p.OP226-OP230
Hauptverfasser: Hanham, S. M., Fernández-Domínguez, A. I., Teng, J. H., Ang, S. S., Lim, K. P., Yoon, S. F., Ngo, C. Y., Klein, N., Pendry, J. B., Maier, S. A.
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container_end_page OP230
container_issue 35
container_start_page OP226
container_title Advanced materials (Weinheim)
container_volume 24
creator Hanham, S. M.
Fernández-Domínguez, A. I.
Teng, J. H.
Ang, S. S.
Lim, K. P.
Yoon, S. F.
Ngo, C. Y.
Klein, N.
Pendry, J. B.
Maier, S. A.
description The plasmonic behavior of dimers of touching semiconductor disks is studied experimentally in the difficult‐to‐realize regime where the disks are only marginally overlapping. Previous theoretical studies have shown that this geometry exhibits a highly efficient broadband response that may be very promising for light harvesting and sensing applications. By taking advantage of the plasmonic character of InSb in the terahertz regime, we experimentally confirm this broadband response and describe the associated strong field enhancement and sub‐micrometer field confinement between the disks.
doi_str_mv 10.1002/adma.201202003
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subjects Absorption
Antimony - chemistry
Broadband
Disks
Indium - chemistry
Indium antimonide
Intermetallic compounds
Materials science
microstructures
Optical Phenomena
Plasmonics
semiconducting materials
Semiconductors
surface plasmon resonance
title Broadband Terahertz Plasmonic Response of Touching InSb Disks
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