Paper
19 February 2014 Demonstration of a variable plasmonic beam splitter
S. Kumar, Niels Israelsen Kristiansen, Ulrik L. Andersen, Alexander Huck
Author Affiliations +
Abstract
In this contribution, we excite surface plasmon polaritons propagating along a silver nano-wire by a single nitrogenvacancy center located in a diamond nano-crystal. By using the tip of an atomic force microscope, a second nano-wire is brought into the evanescent field of the first wire such that surface plasmons can evanescently couple. In our experiment, we are able to tune the coupling strength from one nano-wire to another by adjusting the gap with the aid of the atomic force microscope. Numerical calculations of the coupling strength are carried out, which support the values found in the experiment.
© (2014) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
S. Kumar, Niels Israelsen Kristiansen, Ulrik L. Andersen, and Alexander Huck "Demonstration of a variable plasmonic beam splitter", Proc. SPIE 8997, Advances in Photonics of Quantum Computing, Memory, and Communication VII, 89970Y (19 February 2014); https://doi.org/10.1117/12.2039463
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KEYWORDS
Nanowires

Silver

Atomic force microscopy

Beam splitters

Luminescence

Plasmonics

Radio propagation

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