Propagation of light in serially coupled plasmonic nanowire dimer: Geometry dependence and polarization control

Journal Article · Mon Sep 10 00:00:00 EDT 2012 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.4752718· OSTI ID:22080429

Singh, Danveer; Raghuwanshi, Mohit; Pavan Kumar, G V ^[1]

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1. Photonics and Optical Nanoscopy Laboratory, Department of Physics and Department of Chemistry, Indian Institute of Science Education and Research (IISER), Pune 411008 (India)

We experimentally studied plasmon-polariton-assisted light propagation in serially coupled silver nanowire (Ag-NW) dimers and probed their dependence on bending-angle between the nanowires and polarization of incident light. From the angle-dependence study, we observed that obtuse angles between the nanowires resulted in better transmission than acute angles. From the polarization studies, we inferred that light emission from junction and distal ends of Ag-NW dimers can be systematically controlled. Further, we applied this property to show light routing and polarization beam splitting in obtuse-angled Ag-NW dimer. The studied geometry can be an excellent test-bed for plasmonic circuitry.

• OSTI ID: 22080429
• Journal Information: Applied Physics Letters, Vol. 101, Issue 11; Other Information: (c) 2012 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
77 NANOSCIENCE AND NANOTECHNOLOGY
BEAM SPLITTING
DIMERS
EMISSION
LIGHT TRANSMISSION
POLARIZATION
QUANTUM WIRES
SILVER
VISIBLE RADIATION