Print Email Facebook Twitter Planarized nanophotonic sensor for real-time fluid sensing Title Planarized nanophotonic sensor for real-time fluid sensing Author Liu, Y. (TU Delft Reservoir Engineering) Salemink, H.W.M. (TU Delft Reservoir Engineering; Radboud Universiteit Nijmegen) Date 2017 Abstract A planarized on-chip nanophotonic sensor based on a photonic crystal cavity is realized in this work. The sensor was embedded in a solid protecting material (flowable oxide) with perfect filled holes: this eliminates problems of fouling in practical applications. The functional area of the sensor is created by carefully removing the protecting material only on the top surface of the cavity. A wavelength shift of 7.5 nm was observed in experiment which is very close to a simulation result of 9.0 nm for sensing water (n=1.33) and crude oil (n=1.45) samples. Swift and accurate sensing was verified by a real-time dynamic measurement with rapidly alternating analytes in a microfluid channel. Subject Photonic crystal waveguidesChemical compoundsCrude oilOptical propertiesElectrical properties To reference this document use: http://resolver.tudelft.nl/uuid:e2d74a7c-e853-44c3-b784-b5d81b0b2c7c DOI https://doi.org/10.1063/1.4993104 ISSN 2158-3226 Source AIP Advances, 7 (9) Part of collection Institutional Repository Document type journal article Rights © 2017 Y. Liu, H.W.M. Salemink Files PDF 1.4993104.pdf 19.15 MB Close viewer /islandora/object/uuid:e2d74a7c-e853-44c3-b784-b5d81b0b2c7c/datastream/OBJ/view