title: Manipulating magnetic plasmon propagation in metallic nanocluster networks.
abstract: 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.
authors.affiliation: Department of Electrical and Computer Engineering, Rice University, 6100 Main Street, Houston, Texas 77005, USA. nl7@rice.edu
authors.forename: Na
authors.initials: N
authors.lastname: Liu
authors.forename: Shaunak
authors.initials: S
authors.lastname: Mukherjee
authors.forename: Kui
authors.initials: K
authors.lastname: Bao
authors.forename: Yang
authors.initials: Y
authors.lastname: Li
authors.forename: Lisa V
authors.initials: LV
authors.lastname: Brown
authors.forename: Peter
authors.initials: P
authors.lastname: Nordlander
authors.forename: Naomi J
authors.initials: NJ
authors.lastname: Halas
mesh_terms: D004867:Equipment Design; D019544:Equipment Failure Analysis; D060526:Magnetic Fields; D008422:Materials Testing; D053768:Metal Nanoparticles / Q000737:chemistry* / Q000528:radiation effects / Q000648:ultrastructure*; D020349:Surface Plasmon Resonance / Q000295:instrumentation* / Q000379:methods*