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Fiber optic probe of free electron evanescent fields in the optical frequency range

Fiber optic probe of free electron evanescent fields in the optical frequency range
Fiber optic probe of free electron evanescent fields in the optical frequency range
We introduce an optical fiber platform which can be used to interrogate proximity interactions between free-electron evanescent fields and photonic nanostructures at optical frequencies in a manner similar to that in which optical evanescent fields are sampled using nanoscale aperture probes in scanning near-field microscopy. Conically profiled optical fiber tips functionalized with nano-gratings are employed to couple electron evanescent fields to light via the Smith-Purcell effect. We demonstrate the interrogation of medium energy (30-50 keV) electron fields with a lateral resolution of a few micrometers via the generation and detection of visible/UV radiation in the 700-300 nm (free-space) wavelength range.
0003-6951
1-4
So, Jin-Kyu
06a7afea-61c2-439d-9ac4-047ea21a909b
MacDonald, Kevin F.
76c84116-aad1-4973-b917-7ca63935dba5
Zheludev, Nikolay I.
32fb6af7-97e4-4d11-bca6-805745e40cc6
So, Jin-Kyu
06a7afea-61c2-439d-9ac4-047ea21a909b
MacDonald, Kevin F.
76c84116-aad1-4973-b917-7ca63935dba5
Zheludev, Nikolay I.
32fb6af7-97e4-4d11-bca6-805745e40cc6

So, Jin-Kyu, MacDonald, Kevin F. and Zheludev, Nikolay I. (2014) Fiber optic probe of free electron evanescent fields in the optical frequency range. Applied Physics Letters, 104 (20), 1-4. (doi:10.1063/1.4876395).

Record type: Article

Abstract

We introduce an optical fiber platform which can be used to interrogate proximity interactions between free-electron evanescent fields and photonic nanostructures at optical frequencies in a manner similar to that in which optical evanescent fields are sampled using nanoscale aperture probes in scanning near-field microscopy. Conically profiled optical fiber tips functionalized with nano-gratings are employed to couple electron evanescent fields to light via the Smith-Purcell effect. We demonstrate the interrogation of medium energy (30-50 keV) electron fields with a lateral resolution of a few micrometers via the generation and detection of visible/UV radiation in the 700-300 nm (free-space) wavelength range.

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More information

Published date: 19 May 2014
Organisations: Optoelectronics Research Centre

Identifiers

Local EPrints ID: 365088
URI: https://eprints.soton.ac.uk/id/eprint/365088
ISSN: 0003-6951
PURE UUID: d6c5b7f0-fc8e-43aa-808d-d83b1bfe2546
ORCID for Kevin F. MacDonald: ORCID iD orcid.org/0000-0002-3877-2976
ORCID for Nikolay I. Zheludev: ORCID iD orcid.org/0000-0002-1013-6636

Catalogue record

Date deposited: 23 May 2014 08:35
Last modified: 30 Nov 2019 01:41

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Contributors

Author: Jin-Kyu So

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