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A fast uncooled infrared nanobolometer featuring a hybrid-plasmonic cavity for enhanced optical responsivity
KTH, School of Electrical Engineering (EES), Micro and Nanosystems.ORCID iD: 0000-0002-0080-0708
KTH, School of Electrical Engineering (EES), Micro and Nanosystems.
KTH, School of Electrical Engineering (EES), Micro and Nanosystems.
KTH, School of Electrical Engineering (EES), Micro and Nanosystems.ORCID iD: 0000-0002-2650-0121
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2017 (English)In: 30th IEEE International Conference on Micro Electro Mechanical Systems, Las Vegas, January 22-26, 2017, Institute of Electrical and Electronics Engineers (IEEE), 2017Conference paper, Published paper (Refereed)
Abstract [en]

We demonstrate the first uncooled single-nanowire-based infrared bolometer to detect sub-mW optical signals up to MHz frequencies. The bolometer consists of a Pt nanowire on a suspended silicon hybrid-plasmonic cavity, and exhibits enhanced optical responsivity compared to nanowires on unstructured and non-suspended substrates. Low-cost monolithically integrated infrared detectors are needed for the rapidly growing field of silicon photonic sensors. The high speed of our nanobolometer enables advanced modulation schemes for noise reduction and avoidance of low-frequency thermal cross-talk, as well as power saving by pulsed operation. Furthermore, its simple integration and small footprint make it a cost effective detector for sensing applications.

Place, publisher, year, edition, pages
Institute of Electrical and Electronics Engineers (IEEE), 2017.
Keyword [en]
bolometer, infrared, photonic, plasmonic, platinum
National Category
Nano Technology
Identifiers
URN: urn:nbn:se:kth:diva-199909DOI: 10.1109/MEMSYS.2017.7863562ISI: 000402552000239Scopus ID: 2-s2.0-85015727159OAI: oai:DiVA.org:kth-199909DiVA, id: diva2:1066313
Conference
MEMS, January 22-26, 2017
Funder
VINNOVA, 2016-01655VINNOVA, 2016-02328Stockholm County Council, 20150910
Note

QC 20170124

Available from: 2017-01-17 Created: 2017-01-17 Last updated: 2017-07-04Bibliographically approved

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Ottonello Briano, FloriaColangelo, MarcoErrando-Herranz, CarlosSohlström, HansGylfason, Kristinn B.
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