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Determination of the Excitation and Coupling Rates Between Light Emitters and Surface Plasmon Polaritons
Published on: July 21, 2018
Passive long-range surface plasmon-polariton devices in Cytop
Hui Fan1, Robin Buckley, Pierre Berini
1School of Electrical Engineering and Computer Science, University of Ottawa, Ottawa, Ontario, Canada. hfan022@uottawa.ca
Applied Optics
|April 17, 2012
Summary
Researchers explored gold stripes in Cytop for long-range surface plasmon polaritons. These integrated photonic elements show promise for future biosensing devices.
Area of Science:
- Photonics
- Materials Science
- Nanotechnology
Background:
- Long-range surface plasmon polaritons (LRSPPs) are crucial for integrated photonic devices.
- Gold (Au) stripes offer a platform for supporting LRSPPs.
- Cytop, a low-index polymer, is suitable for biosensing in aqueous environments.
Purpose of the Study:
- To theoretically and experimentally investigate passive photonic elements utilizing LRSPPs.
- To assess the performance of Au stripes embedded in Cytop for integrated optics.
- To evaluate the potential of these elements for biosensing applications.
Main Methods:
- Theoretical modeling of LRSPP propagation in Au-Cytop structures.
- Experimental fabrication of various photonic elements (waveguides, bends, junctions, interferometers).
- Optical characterization of fabricated elements at near-infrared wavelengths (1310 nm).
Main Results:
- Measured performance of devices closely matched theoretical predictions.
- Demonstrated functionality of straight waveguides, S-bends, Y-junctions, couplers, and Mach-Zehnder interferometers.
- Identified uniformity issues attributed to fabrication imperfections.
Conclusions:
- Au stripes in Cytop effectively support LRSPPs.
- The demonstrated elements are suitable for integrated photonic circuits.
- These structures provide a foundation for developing advanced integrated biosensing devices.
