Toward a Nanophotonic Nose: A Compressive Sensing-Enhanced, Optoelectronic Mid-Infrared Spectrometer

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dc.citation.firstpage79
dc.citation.issueNumber1
dc.citation.journalTitleACS Photonics
dc.citation.lastpage86
dc.citation.volumeNumber6
dc.contributor.authorCerjan, Benjamin
dc.contributor.authorHalas, Naomi J.
dc.contributor.orgLaboratory for Nanophotonics
dc.date.accessioned2019-08-16T14:47:26Z
dc.date.available2019-08-16T14:47:26Z
dc.date.issued2019
dc.description.abstractInfrared (IR) spectroscopy has been a central tool for chemical analysis for decades, useful in a wide range of fields for the detection and quantification of molecules based on their unique vibrational resonances. Conventional IR spectroscopy relies on bulky, dispersive optics, however, making portability and miniaturization a substantial challenge. Here we demonstrate a micron-scale IR spectrometer where spectrally selective detection is performed optoelectronically based on the wavelength-dependent mid-IR photocurrent responses of an array of Al grating-based detectors fabricated on a doped Si substrate. Compressive sensing techniques extend our resolution, enabling spectral features to be identified with a remarkably small number of detectors. This work demonstrates a CMOS-compatible, readily scalable approach for the fabrication of compact, room-temperature IR spectrometers capable of use in fieldable applications.
dc.identifier.citationCerjan, Benjamin and Halas, Naomi J.. "Toward a Nanophotonic Nose: A Compressive Sensing-Enhanced, Optoelectronic Mid-Infrared Spectrometer." <i>ACS Photonics,</i> 6, no. 1 (2019) American Chemical Society: 79-86. https://doi.org/10.1021/acsphotonics.8b01503.
dc.identifier.doihttps://doi.org/10.1021/acsphotonics.8b01503
dc.identifier.urihttps://hdl.handle.net/1911/106251
dc.language.isoeng
dc.publisherAmerican Chemical Society
dc.rightsThis is an author's peer-reviewed final manuscript, as accepted by the publisher. The published article is copyrighted by the American Chemical Society.
dc.subject.keywordspectroscopy
dc.subject.keywordinfrared
dc.subject.keywordcompressive sensing
dc.subject.keywordaluminum
dc.subject.keywordsuper-resolution
dc.subject.keywordminiature
dc.titleToward a Nanophotonic Nose: A Compressive Sensing-Enhanced, Optoelectronic Mid-Infrared Spectrometer
dc.typeJournal article
dc.type.dcmiText
dc.type.publicationpost-print
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