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Local density of states, spectrum, and far-field interference of surface plasmon polaritons probed by cathodoluminescence

Kuttge, M. and Vesseur, E. J. R. and Koenderink, A. F. and Lezec, H. J. and Atwater, H. A. and García de Abajo, F. J. and Polman, A. (2009) Local density of states, spectrum, and far-field interference of surface plasmon polaritons probed by cathodoluminescence. Physical Review B, 79 (11). p. 113405. ISSN 0163-1829. http://resolver.caltech.edu/CaltechAUTHORS:20090529-090009838

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Abstract

The surface plasmon polariton (SPP) field intensity in the vicinity of gratings patterned in an otherwise planar gold surface is spatially resolved using cathodoluminescence (CL). A detailed theoretical analysis is presented that successfully explains the measured CL signal based upon interference of transition radiation directly generated by electron impact and SPPs launched by the electron and outcoupled by the grating. The measured spectral dependence of the SPP yield per incoming electron is in excellent agreement with rigorous electromagnetic calculations. The CL emission is shown to be similar to that of a dipole oriented perpendicular to the surface and situated at the point of electron impact, which allows us to establish a solid connection between the CL signal and the photonic local density of states associated to the SPPs.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1103/PhysRevB.79.113405DOIArticle
http://link.aps.org/doi/10.1103/PhysRevB.79.113405PublisherArticle
ORCID:
AuthorORCID
Atwater, H. A.0000-0001-9435-0201
Additional Information:© 2009 The American Physical Society. Received 15 October 2008; published 17 March 2009. This work is part of the research program of FOM, which is financially supported by NWO. This work is also funded by NANONED. Work at Caltech is financially supported by the AFOSR under MURI with Grant No. FA9550-04-1-0434. F.J.G.A. acknowledges support from the Spanish MEC (Contract No. MAT2007-66050).
Funders:
Funding AgencyGrant Number
Nanotechnology network in the Netherlands (NANONED)UNSPECIFIED
Air Force Office of Scientific Research (AFOSR)FA9550-04-1-0434
Ministerio de Educación y Ciencia (MEC)MAT2007-66050
Nederlandse Organisatie voor Wetenschappelijk Onderzoek (NWO)UNSPECIFIED
Subject Keywords:cathodoluminescence; electron collisions; electronic density of states; gold; photonic band gap; polaritons; surface plasmons
Issue or Number:11
Record Number:CaltechAUTHORS:20090529-090009838
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20090529-090009838
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:14338
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:14 Aug 2009 16:54
Last Modified:27 Sep 2017 23:58

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