Giant Photoresponsivity of Midinfrared Hyperbolic Metamaterials in the Photon-Assisted-Tunneling Regime

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dc.contributor.utaustinauthorAlu, Andreaen_US
dc.creatorChen, Pai-Yenen_US
dc.creatorHajizadegan, Mehdien_US
dc.creatorSakhdari, Maryamen_US
dc.creatorAlu, Andreaen_US
dc.date.accessioned2017-07-18T20:09:19Z
dc.date.available2017-07-18T20:09:19Z
dc.date.issued2016-04en_US
dc.description.abstractWe explore broadband and omnidirectional midinfrared rectification based on nanopatterned hyperbolic metamaterials, composed of two dissimilar metals separated by an ultrathin dielectric layer. The exotic slow-light modes supported by such periodically trenched hyperbolic metamaterials efficiently trap incident radiation in massively parallel metal-insulator-metal tunnel junctions producing ultrafast infrared rectification via photon-assisted tunneling. This leads to a highly efficient photon-to-electron transduction with obtained photocurrent orders of magnitude larger than conventional lumped-element devices, such as nanorectennas and point-contact rectifiers. Our results promise an impact on infrared energy harvesters and plasmonic photodetectors.en_US
dc.description.departmentElectrical and Computer Engineeringen_US
dc.description.sponsorshipen_US
dc.identifierdoi:10.15781/T2Q23RF86
dc.identifier.citationChen, Pai-Yen, Mehdi Hajizadegan, Maryam Sakhdari, and Andrea Alù. "Giant Photoresponsivity of Midinfrared Hyperbolic Metamaterials in the Photon-Assisted-Tunneling Regime." Physical Review Applied 5, no. 4 (2016): 041001.en_US
dc.identifier.doi10.1103/PhysRevApplied.5.041001en_US
dc.identifier.issn2331-7019en_US
dc.identifier.urihttp://hdl.handle.net/2152/61072
dc.language.isoEnglishen_US
dc.relation.ispartofUT Faculty/Researcher Worksen_US
dc.relation.ispartofserialPhysical Review Applieden_US
dc.rightsAdministrative deposit of works to Texas ScholarWorks: This works author(s) is or was a University faculty member, student or staff member; this article is already available through open access or the publisher allows a PDF version of the article to be freely posted online. The library makes the deposit as a matter of fair use (for scholarly, educational, and research purposes), and to preserve the work and further secure public access to the works of the University.en_US
dc.rights.restrictionopenen_US
dc.subjectthin insulating filmen_US
dc.subjectharmonic-generationen_US
dc.subjectfield enhancementen_US
dc.subjectabsorptionen_US
dc.subjectelectrodesen_US
dc.subjectemissionen_US
dc.subjectenergyen_US
dc.subjectconductivityen_US
dc.subjectefficiencyen_US
dc.subjectdiodesen_US
dc.titleGiant Photoresponsivity of Midinfrared Hyperbolic Metamaterials in the Photon-Assisted-Tunneling Regimeen_US
dc.typeArticleen_US

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