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This work demonstrates surface plasmon resonance (SPR) sensing based on the polarization dependence of extraordinary optical transmission through a biaxial nanohole array. This structure provides two nearly-degenerate periodicities in a single array that can be individually probed by varying polarization. This real-time monitoring technique is particularly useful to the on-going microfluidic integration...
Polarization dependent SPR-based sensing is demonstrated using a biaxial nanohole array. This enables increased spectral diversity and sensitivity with single line excitation. Towards further optofluidic integration, a flow- through array detection scheme is evaluated computationally.
Methods to insert, keep and fix silver and gold nanoparticles to the inner walls of microstructured fibers are demonstrated. Fibers optimized for evanescent field interaction were employed and can result in efficient plasmonic chemical sensing.
The cusps formed by two barely overlapping nanoholes in a metal film enhance the local field and allow for order of magnitude surface-enhanced Raman over single holes.
A microfluidic device with an embedded surface-plasmon resonance (SPR) sensor array was developed. The sensing elements are nanohole arrays, differentiated by periodicity. On-chip chemical detection using SPR is demonstrated
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