期刊
ACS NANO
卷 6, 期 6, 页码 5482-5488出版社
AMER CHEMICAL SOC
DOI: 10.1021/nn301393x
关键词
magnetic plasmons; nanoclusters; coupling; subwavelength; waveguides; networks
类别
资金
- Robert A. Welch Foundation [C-1220, C-1222]
- Air Force Office of Scientific Research [FA9550-10-1-0469]
- Office of Naval Research [N00014-10-1-0989]
- National Science Foundation (IGERT) [DGE-0504425]
- DoD NSSEFF [N00244-09-1-0067]
- Defense Threat Reduction Agency (DTRA) [HDTRA1-11-1-0040]
- Div Of Electrical, Commun & Cyber Sys
- Directorate For Engineering [1040478] Funding Source: National Science Foundation
Neighboring fused heptamers can support magnetic plasmons due to the generation of antiphase ring currents in the metallic nanoclusters. In this paper, we use such artificial plasmonic molecules as basic elements to construct low-loss plasmonic waveguides and devices. These magnetic plasmon-based complexes exhibit waveguiding functionalities including plasmon steering over large-angle bends, splitting at intersections, and Mach-Zehnder interference between consecutive Y-splitters. Our findings provide a strategy for circumventing significant challenges in the miniaturization and high-density integration of optical circuits in integrated optics, allowing for the development of ultracompact plasmonic networks for practical applications.
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