Nanoscale free electron-driven light sources
Nanoscale free electron-driven light sources
Proximity and impact interactions between free-electrons and plasmonic nanostructures offer a versatile platform for the engineering of tuneable nanoscale light sources. We review recently demonstrated systems wherein electron energy is resonantly coupled from a highly localized excitation, via a coherent photonic meta-surface, to low-divergence, free-space light emission; in which medium energy (30-50 kV) electrons generate guided UV/visible radiation in tapered fibre-optic probes akin to those employed for sampling evanescent light fields in near-field microscopy; and in which the electron fields, and thus associated light emission, can be amplified by a planar silver film acting as a "poor-man’s superlens".
So, J.K.
06a7afea-61c2-439d-9ac4-047ea21a909b
MacDonald, K.F.
76c84116-aad1-4973-b917-7ca63935dba5
Zheludev, N.I.
32fb6af7-97e4-4d11-bca6-805745e40cc6
So, J.K.
06a7afea-61c2-439d-9ac4-047ea21a909b
MacDonald, K.F.
76c84116-aad1-4973-b917-7ca63935dba5
Zheludev, N.I.
32fb6af7-97e4-4d11-bca6-805745e40cc6
So, J.K., MacDonald, K.F. and Zheludev, N.I.
(2014)
Nanoscale free electron-driven light sources.
Electron Beam Spectroscopy for Nanophotonics, Amsterdam, Netherlands.
01 - 03 Jun 2014.
Record type:
Conference or Workshop Item
(Other)
Abstract
Proximity and impact interactions between free-electrons and plasmonic nanostructures offer a versatile platform for the engineering of tuneable nanoscale light sources. We review recently demonstrated systems wherein electron energy is resonantly coupled from a highly localized excitation, via a coherent photonic meta-surface, to low-divergence, free-space light emission; in which medium energy (30-50 kV) electrons generate guided UV/visible radiation in tapered fibre-optic probes akin to those employed for sampling evanescent light fields in near-field microscopy; and in which the electron fields, and thus associated light emission, can be amplified by a planar silver film acting as a "poor-man’s superlens".
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e-pub ahead of print date: 2014
Venue - Dates:
Electron Beam Spectroscopy for Nanophotonics, Amsterdam, Netherlands, 2014-06-01 - 2014-06-03
Organisations:
Optoelectronics Research Centre
Identifiers
Local EPrints ID: 366345
URI: http://eprints.soton.ac.uk/id/eprint/366345
PURE UUID: d576cf1d-9731-4068-84ad-f1e27b0867b6
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Date deposited: 30 Jun 2014 11:19
Last modified: 12 Dec 2021 03:09
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Author:
J.K. So
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