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dc.contributor.authorPiccinotti, Davideen
dc.contributor.authorGholipour, Behraden
dc.contributor.authorYao, Jinen
dc.contributor.authorMacdonald, Kevin F.en
dc.contributor.authorHayden, Brian E.en
dc.contributor.authorZheludev, Nikolay I.en
dc.identifier.citationPiccinotti, D., Gholipour, B., Yao, J., Macdonald, K. F., Hayden, B. E., & Zheludev, N. I. (2018). Compositionally controlled plasmonics in amorphous semiconductor metasurfaces. Optics Express, 26(16), 20861-. doi:10.1364/OE.26.020861en
dc.description.abstractAmorphous bismuth telluride (Bi:Te) provides a composition-dependent, CMOS-compatible alternative material platform for plasmonics in the ultraviolet-visible spectral range. Thin films of the chalcogenide semiconductor are found, using high-throughput physical vapor deposition and characterization techniques, to exhibit a plasmonic response (a negative value of the real part of relative permittivity) over a band of wavelengths extending from ~250 nm to between 530 and 978 nm, depending on alloy composition (Bi:Te at% ratio). The plasmonic response is illustrated via the fabrication of subwavelength period nano-grating metasurfaces, which present strong, period-dependent plasmonic absorption resonances in the visible range, manifested in the perceived color of the nanostructured domains in reflection.en
dc.description.sponsorshipMOE (Min. of Education, S’pore)en
dc.format.extent7 p.en
dc.relation.ispartofseriesOptics Expressen
dc.rights© 2018 Published by The Optical Society under the terms of the Creative Commons Attribution 4.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI.en
dc.subjectSemiconductor Materialsen
dc.titleCompositionally controlled plasmonics in amorphous semiconductor metasurfacesen
dc.typeJournal Articleen
dc.contributor.schoolSchool of Physical and Mathematical Sciencesen
dc.contributor.researchCentre for Disruptive Photonic Technologies (CDPT)en
dc.contributor.researchThe Photonics Instituteen
dc.description.versionPublished versionen
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