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Evaluating Plasmonic Transport in Current-carrying Silver Nanowires
Published on: December 11, 2013
Branched silver nanowires as controllable plasmon routers
Yurui Fang1, Zhipeng Li, Yingzhou Huang
1Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing, China.
Nano Letters
|April 28, 2010
Summary
Branched silver nanowires route plasmons using laser light polarization. This wavelength-dependent routing enables their use as controllable routers and multiplexers in plasmonic circuits.
Area of Science:
- Plasmonics
- Nanophotonics
- Materials Science
Background:
- Surface plasmons are collective oscillations of electrons on metal surfaces.
- Plasmon propagation in nanowires is crucial for nanoscale optical components.
- Controlling plasmon routing is essential for integrated plasmonic circuits.
Purpose of the Study:
- To investigate plasmon propagation on branched silver nanowires.
- To demonstrate wavelength-dependent plasmon routing using polarization control.
- To explore the potential of branched nanowires as components in plasmonic circuits.
Main Methods:
- Polarization-dependent scattering spectroscopy was employed.
- Incident laser light polarization was controlled to route plasmons.
- Light emission from nanowire ends was analyzed.
Main Results:
- Plasmon propagation on branched silver nanowires was successfully investigated.
- Controlling incident laser polarization effectively routed plasmons into different branches.
- This routing behavior exhibited strong dependence on the incident light's wavelength.
- Different wavelengths were routed into different branches for specific polarizations.
Conclusions:
- Branched silver nanowires act as controllable routers for plasmons.
- The wavelength-dependent routing capability makes them suitable for multiplexing functions.
- These nanowires show promise for developing integrated plasmonic circuits.
