Single mode waveguide platform for spontaneous and surface-enhanced on-chip Raman spectroscopy
Abstract
We review an on-chip approach for spontaneous Raman spectroscopy and Surface Enhanced Raman Spectroscopy (SERS) based on evanescent excitation of the analyte as well as evanescent collection of the Raman signal using Complementary Metal Oxide Semiconductor (CMOS) compatible single mode waveguides. The signal is either directly collected from the analyte molecules or via plasmonic nanoantennas integrated on top of the waveguides. Flexibility in the design of the geometry of the waveguide, and/or the geometry of the antennas, enables optimization of the collection efficiency. Furthermore the sensor can be integrated with additional functionality (sources, detectors, spectrometers) on the same chip. In this paper, the basic theoretical concepts are introduced to identify the key design parameters and some proof-of-concept experimental results are reviewed.
Cite
@article{arxiv.1609.04564,
title = {Single mode waveguide platform for spontaneous and surface-enhanced on-chip Raman spectroscopy},
author = {Ashim Dhakal and Frédéric Peyskens and Stéphane Clemmen and Ali Raza and Pieter Wuytens and Haolan Zhao and Nicolas Le Thomas and Roel Baets},
journal= {arXiv preprint arXiv:1609.04564},
year = {2016}
}