Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/146758
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dc.contributor.authorQiang, Boen_US
dc.contributor.authorDubrovkin, Alexander M.en_US
dc.contributor.authorKrishnamoorthy, Harish N. S.en_US
dc.contributor.authorWang, Qianen_US
dc.contributor.authorZheludev, Nikolay I.en_US
dc.contributor.authorWang, Qi Jieen_US
dc.date.accessioned2021-03-09T09:10:13Z-
dc.date.available2021-03-09T09:10:13Z-
dc.date.issued2021-
dc.identifier.citationQiang, B., Dubrovkin, A. M., Krishnamoorthy, H. N. S., Wang, Q., Zheludev, N. I., & Wang, Q. J. (2021). Germanium-on-carborundum surface phonon-polariton infrared metamaterial. Advanced Optical Materials, 9(5), 2001652-. doi:10.1002/adom.202001652en_US
dc.identifier.issn2195-1071en_US
dc.identifier.other0000-0001-8739-4505-
dc.identifier.urihttps://hdl.handle.net/10356/146758-
dc.description.abstractSurface phonon-polaritons in thin layers of high-index dielectric structures are emerging as promising excitations for exploitation in high-density photonic devices. Here, a mid-infrared phononic–dielectric metamaterial, a 2D periodic array of germanium discs on silicon carbide (carborundum) is demonstrated. It is shown that the metamaterial can support sharp resonances at the free space wavelength that is at least ten times larger than lattice parameter of the array. With germanium discs of thickness 120 nm and diameter 1 µm, a metamaterial resonance at the wavelength of 11 µm is observed. A blueshift of the resonant frequency observed upon increase of the disk size is related to the anomalous dispersion of surface polaritons at germanium carborundum interface. It is argued that such surface phonon-polariton metamaterial is a promising platform for applications where enhanced homogeneity of optical response is required, such as imaging, holography, and cloaking.en_US
dc.description.sponsorshipAgency for Science, Technology and Research (A*STAR)en_US
dc.description.sponsorshipMinistry of Education (MOE)en_US
dc.description.sponsorshipNational Research Foundation (NRF)en_US
dc.language.isoenen_US
dc.relationMOE2016-T3-1-006en_US
dc.relationMOE2018-T2-1-176en_US
dc.relationNRF-CRP18-2017-02en_US
dc.relationNRF-CRP19-2017-01en_US
dc.relationEP/M009122/1en_US
dc.relationA18A7b0058en_US
dc.relation.ispartofAdvanced Optical Materialsen_US
dc.rightsThis is the peer reviewed version of the following article: Qiang, B., Dubrovkin, A. M., Krishnamoorthy, H. N. S., Wang, Q., Zheludev, N. I., & Wang, Q. J. (2021). Germanium-on-carborundum surface phonon-polariton infrared metamaterial. Advanced Optical Materials, 9(5), 2001652-. doi:10.1002/adom.202001652, which has been published in final form at https://doi.org/10.1002/adom.202001652. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions.en_US
dc.subjectEngineering::Nanotechnologyen_US
dc.titleGermanium-on-carborundum surface phonon-polariton infrared metamaterialen_US
dc.typeJournal Articleen
dc.contributor.schoolSchool of Electrical and Electronic Engineeringen_US
dc.contributor.schoolSchool of Physical and Mathematical Sciencesen_US
dc.contributor.researchCentre for Disruptive Photonic Technologies (CDPT)en_US
dc.contributor.researchA*STAR Institute of Material Research and Engineeringen_US
dc.contributor.researchCentre for OptoElectronics and Biophotonics (OPTIMUS)en_US
dc.identifier.doi10.1002/adom.202001652-
dc.description.versionAccepted versionen_US
dc.identifier.scopus2-s2.0-85097674431-
dc.identifier.issue5en_US
dc.identifier.volume9en_US
dc.identifier.spage2001652en_US
dc.subject.keywordsGermaniumen_US
dc.subject.keywordsMetamaterialsen_US
dc.description.acknowledgementThis research was supported by the Singapore Ministry of Education (Academic Research Fund MOE2016-T3-1-006 (S) and Grant No. MOE2018-T2-1-176), by Advanced Manufacturing and Engineering Grant from the Agency for Science, Technology and Research (A*STAR) (Award No. A18A7b0058), by the National Research Foundation Singapore programs NRF-CRP18-2017-02 and NRF-CRP19-2017-01, and by the UK Engineering and Physical Sciences Research Council (Grant No. EP/M009122/1).en_US
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