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Wavelength selective nanophotonic components utilizing channel plasmon polaritons
Valentyn S Volkov1, Sergey I Bozhevolnyi, Eloïse Devaux
1Department of Physics and Nanotechnology, Aalborg University, Skjernvej 4A, DK-9220 Aalborg Øst, Denmark. volkov@physics.aau.dk
Nano Letters
|March 14, 2007
Summary
Researchers developed novel wavelength selective components using channel plasmon polaritons (CPPs) for telecom applications. These components, including a multiplexer and filter, demonstrate significant wavelength selectivity.
Area of Science:
- Plasmonics
- Nanophotonics
- Optical Engineering
Background:
- Channel plasmon polaritons (CPPs) offer unique light confinement properties at the nanoscale.
- Developing efficient wavelength selective components is crucial for optical communication systems.
- Existing technologies face limitations in size and selectivity for telecom wavelengths.
Purpose of the Study:
- To fabricate and investigate novel wavelength selective components using CPPs.
- To demonstrate the functionality of a waveguide-ring resonator-based add-drop multiplexer (WRR-ADM) and a Bragg grating filter (BGF) at telecom wavelengths.
- To characterize the performance and selectivity of these CPP-based optical devices.
Main Methods:
- Fabrication of CPP waveguides in gold V-grooves.
- Integration of ring resonators and milled wells for filter and multiplexer designs.
- Characterization using near-field optical microscopy across the 1425-1600 nm wavelength range.
Main Results:
- Successful fabrication of CPP waveguides with specified dimensions.
- Demonstration of wavelength selectivity in both WRR-ADM and BGF components.
- Achieved approximate wavelength selectivity of 40 nm for the CPP-based devices.
Conclusions:
- CPPs are a viable platform for creating compact and selective optical components.
- The developed WRR-ADM and BGF show promise for future telecom applications.
- Further optimization could enhance the selectivity and performance of CPP-based photonic devices.
