Abstract
Passive elements operating with long-range surface plasmon polaritons and constructed as Au stripes embedded in Cytop were investigated theoretically and experimentally at wavelengths near 1310 nm. The elements investigated consist of straight waveguides, -bends, -junctions, couplers, and Mach–Zehnder interferometers. The measured performance of these devices is close to theoretical expectations, although uniformity issues were noted, likely because of fabrication imperfections. Cytop is a low-index polymer suitable for biosensing applications involving aqueous buffers. The elements demonstrated thus could form the basis of integrated biosensing devices operating with long-range surface plasmons.
©2012 Optical Society of America
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