Resonance-based integrated plasmonic nanosensor for lab-on-chip applications

A compact lab-on-a-chip nanosensor for glycerol detection

Plasmonic waveguide based mid - infrared lab - on - a - chip

Dielectric-loaded plasmonic waveguides are perfectly suitable for on-chip sensing of fluids. They allow long propagation length and large mode overlaps above 96% with a the analyte. Dielectric-loading is a alternative approach to increase the confinement of mid-infrared surface plasmons without the need for sub-wavelength patterning. Direct excitation and detection is realized using chip integr...

Lab-on-chip systems for integrated bioanalyses

Biomolecular detection systems based on microfluidics are often called lab-on-chip systems. To fully benefit from the miniaturization resulting from microfluidics, one aims to develop 'from sample-to-answer' analytical systems, in which the input is a raw or minimally processed biological, food/feed or environmental sample and the output is a quantitative or qualitative assessment of one or mor...

Nanophotonics for Lab-on-Chip Applications

Optical methods are the preferred measurement techniques for biosensors and lab-on-chip applications. Their key properties are sensitivity, selectivity and robustness. To simplify the systems and their operation, it is desirable to employ label-free optical methods, requiring the functionalization of interfaces. Evanescent electromagnetic waves are probing the optical properties near the interf...

Hybrid integrated plasmonic-photonic waveguides for on-chip localized surface plasmon resonance (LSPR) sensing and spectroscopy.

We experimentally demonstrate efficient extinction spectroscopy of single plasmonic gold nanorods with exquisite fidelity (SNR > 20dB) and high efficiency light coupling (e. g., 9.7%) to individual plasmonic nanoparticles in an integrated platform. We demonstrate chip-scale integration of lithographically defined plasmonic nanoparticles on silicon nitride (Si3N4) ridge waveguides for on-chip lo...