Journal
NANO CONVERGENCE
Volume 7, Issue 1, Pages -Publisher
SPRINGER
DOI: 10.1186/s40580-020-00222-x
Keywords
Nanophotonics; Biochemical; physical sensors; Guided-wave; Infrared
Funding
- National Research Foundation Singapore [NRF-CRP15-2015-02]
- NRF-ISF [NRF2015-NRF-ISF001-2620]
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Nanophotonics, manipulating light-matter interactions at the nanoscale, is an appealing technology for diversified biochemical and physical sensing applications. Guided-wave nanophotonics paves the way to miniaturize the sensors and realize on-chip integration of various photonic components, so as to realize chip-scale sensing systems for the future realization of the Internet of Things which requires the deployment of numerous sensor nodes. Starting from the popular CMOS-compatible silicon nanophotonics in the infrared, many infrared guided-wave nanophotonic sensors have been developed, showing the advantages of high sensitivity, low limit of detection, low crosstalk, strong detection multiplexing capability, immunity to electromagnetic interference, small footprint and low cost. In this review, we provide an overview of the recent progress of research on infrared guided-wave nanophotonic sensors. The sensor configurations, sensing mechanisms, sensing performances, performance improvement strategies, and system integrations are described. Future development directions are also proposed to overcome current technological obstacles toward industrialization.
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