DataVXACS NanoPaper
journal article·2017-01-24

Revealing Nanostructures through Plasmon Polarimetry

Marie-Elena Kleemann, Jan Mertens, Xuezhi Zheng, Sean Cormier, Vladimir Turek, Felix Benz, Rohit Chikkaraddy, William Deacon, Anna Lombardi, Victor V. Moshchalkov, Guy A. E. Vandenbosch, Jeremy J. Baumberg

ACS Nano· Volume 11· Issue 1
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Source abstract

Abstract

Polarized optical dark-field spectroscopy is shown to be a versatile noninvasive probe of plasmonic structures that trap light to the nanoscale. Clear spectral polarization splittings are found to be directly related to the asymmetric morphology of nanocavities formed between faceted gold nanoparticles and an underlying gold substrate. Both experiment and simulation show the influence of geometry on the coupled system, with spectral shifts Δλ = 3 nm from single atoms. Analytical models allow us to identify the split resonances as transverse cavity modes, tightly confined to the nanogap. The direct correlation of resonance splitting with atomistic morphology allows mapping of subnanometre structures, which is crucial for progress in extreme nano-optics involving chemistry, nanophotonics, and quantum devices.
Source: openalex_inverted_index · Quality: baseline

Research context

Nanomaterials

OpenAlex topics: Gold and Silver Nanoparticles Synthesis and Applications · Plasmonic and Surface Plasmon Research · Protein Interaction Studies and Fluorescence Analysis

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

NanoPhotonics Centre, Cavendish Laboratory, University of Cambridge, Cambridge, CB3 0HE, United Kingdom

Laboratory of Solid State Physics and Magnetism, KU Leuven, Celestijnenlaan 200D, BUS 2414, Leuven 3001, Belgium

Department of Electrical Engineering (ESAT-TELEMIC), KU Leuven, Kasteelpark Arenberg 10, BUS 2444, Leuven 3001, Belgium

Funding

Engineering and Physical Sciences Research Council · European Research Council · KU Leuven · Vlaamse Overheid · University of Cambridge · Fonds Wetenschappelijk Onderzoek · C.T. Taylor Fund, University of Cambridge

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