Hybrid photonic-plasmonic near-field probe for efficient light conversion into the nanoscale hot spot

Optics Letters
Alexander KoshelevStefano Cabrini

Abstract

In this Letter, we present a design and simulations of the novel hybrid photonic-plasmonic near-field probe. Near-field optics is a unique imaging tool that provides optical images with resolution down to tens of nanometers. One of the main limitations of this technology is its low light sensitivity. The presented hybrid probe solves this problem by combining a campanile plasmonic probe with the photonic layer, consisting of the diffractive optic element (DOE). The DOE is designed to match the plasmonic field at the broad side of the campanile probe with the fiber mode. This makes it possible to optimize the size of the campanile tip to convert light efficiently into the hot spot. The simulations show that the hybrid probe is ∼540 times more efficient compared with the conventional campanile on average in the 600-900 nm spectral range.

References

Dec 13, 2007·Optics Letters·T A Klar, S W Hell
Nov 26, 2009·Nature Nanotechnology·Francesco De AngelisEnzo Di Fabrizio
Dec 24, 2010·Nano Letters·Lars NeumannNiek F van Hulst
Feb 1, 2013·Nano Letters·Florian HuthRainer Hillenbrand
Oct 22, 2013·Nature Nanotechnology·A GiugniE Di Fabrizio
Jun 13, 2014·Optics Express·He HuangX Wu
Jul 26, 2014·Nanotechnology·Carlos Pina-HernandezChristophe Peroz
Jun 25, 2016·Nature Communications·Timo GissiblHarald Giessen
Aug 9, 2016·Nanotechnology·Giuseppe CalafioreStefano Cabrini
May 12, 2017·Scientific Reports·Giuseppe CalafioreKeiko Munechika

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