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Authors: A. Raza, J. Losada, S. Clemmen, R. Baets, A. Griol, A. Martinez
Title: Surface enhanced Raman spectroscopy via isolated plasmonic nanoantennas integrated on silicon nitride waveguides
Format: International Conference Proceedings
Publication date: 5/2018
Journal/Conference/Book: European Conference on Integrated Optics (ECIO
Volume(Issue): p.104-106
Location: Valencia, Spain
Citations: Look up on Google Scholar


In this work, we demonstrate experimentally surface-enhanced Raman spectroscopy (SERS) via bowtie
metallic nanoantennas integrated into silicon nitride waveguides. Two different configurations are considered:nanoantenna on top of the waveguide and nanoantenna inside a gap created in the waveguide. Even though both configurations allow for observing the Raman peaks of 4-nitrothiophenol (NTP), the latter shows higher peaks as a result of a better coupling from the Raman active centres to the fundamental TE waveguide mode. Our results pave the way towards the realization of massive SERS detectors on silicon-compatible photonic chips.

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