Zero-Reflectance Metafilms for Optimal Plasmonic Sensing

Fumin Huang, Stacey Drakeley, Matthew G. Millyard, Antony Murphy, Richard White, Elisabetta Spigone, Jani Kivioja, Jeremy J. Baumberg

Research output: Contribution to journalArticlepeer-review

15 Citations (Scopus)

Abstract

An ultrathin layer of metasurface that almost completely annihilates the reflection of light (>99.5%) over a wide range of incident angles (>80°) is experimentally demonstrated. Such zero-reflectance metafilms exhibit optimal performance for plasmonic sensing, since their sensitivity to changes of local refractive index is far superior to films of nonzero reflectance. Since both main detection mechanisms tracking intensity changes and wavelength shifts are improved, zero-reflectance metafilms are optimal for localized surface plasmon resonance molecular sensing. Such nanostructures have significant opportunities in many areas, including enhanced light harvesting as well as in developing high-performance molecular sensors for a wide range of chemical and biomedical applications.
Original languageEnglish
Pages (from-to)328-335
Number of pages8
JournalAdvanced Optical Materials
Volume4
Issue number2
Early online date23 Nov 2015
DOIs
Publication statusPublished - Feb 2016

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