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dc.contributor.authorKalhor, Sen
dc.contributor.authorGhanaatshoar, Men
dc.contributor.authorKashiwagi, Ten
dc.contributor.authorKadowaki, Ken
dc.contributor.authorKelly, MJen
dc.contributor.authorDelfanazari, Kavehen
dc.date.accessioned2018-04-18T08:03:20Z
dc.date.available2018-04-18T08:03:20Z
dc.date.issued2017-10-01en
dc.identifier.issn1943-0655
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/274951
dc.description.abstractWe introduce a class of low-loss subwavelength resonators and report the first demonstration of a high-temperature (Tc) superconducting Bi2Sr2CaCu2O8+d (BSCCO) terahertz (THz) metamaterial. The numerical simulations and analytical calculations are performed to study the electromagnetic response of the subwavelength BSCCO split-ring resonators (SRRs) to the incident photons with energies below the superconducting gap energy. A transition of resonance strength is observed as a dip in resonance frequency for temperatures below BSCCO Tc. To interpret the transmission spectra, resonance switching and frequency tuning of SRRs, we calculate the temperature dependent complex permittivity and surface impedance of a 200 nm thick unpatterned slightly-underdoped BSCCO thin film. We compare the resonance tunability of SRRs made of the extremely disorder superconductor (BSCCO) with metamaterials made of a weakly disorder superconductor (YBCO) and show that the resonance quality and frequency tuning are comparable for these two metamaterials. Our results may be useful for THz emitters and detectors developments, for instance, by integration of SRRs with BSCCO THz emitters and microstrip antennas, the device functionalities such as polarization, emission pattern directivity, and output power could be controlled and improved.
dc.publisherIEEE Photonics Journal
dc.rightsAttribution 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.titleThermal Tuning of High-T<inf>c</inf> Superconducting Bi<inf>2</inf>Sr<inf>2</inf>CaCu<inf>2</inf>O<inf>8+δ</inf> Terahertz Metamaterialen
dc.typeArticle
prism.issueIdentifier5en
prism.publicationDate2017en
prism.publicationNameIEEE Photonics Journalen
prism.startingPage1DUMMU
prism.volume9en
dc.identifier.doi10.17863/CAM.13319
dcterms.dateAccepted2017-09-15en
rioxxterms.versionofrecord10.1109/JPHOT.2017.2754465en
rioxxterms.versionVoR*
rioxxterms.licenseref.urihttp://creativecommons.org/licenses/by/4.0/en
rioxxterms.licenseref.startdate2017-10-01en
dc.contributor.orcidDelfanazari, Kaveh [0000-0002-1386-3855]
dc.identifier.eissn1943-0647
rioxxterms.typeJournal Article/Reviewen
pubs.funder-project-idEPSRC (EP/M009505/1)
cam.orpheus.successThu Jan 30 12:59:55 GMT 2020 - The item has an open VoR version.*
rioxxterms.freetoread.startdate2100-01-01


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Attribution 4.0 International
Except where otherwise noted, this item's licence is described as Attribution 4.0 International