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SCHMIDT, F. HORÁK, M. STÖGER-POLLACH, M. KRENN, J. LOSQUIN, A. HOHENESTER, U.
Original Title
Fundamental Limit of Plasmonic Cathodoluminescence
Type
journal article in Web of Science
Language
English
Original Abstract
We use cathodoluminescence (CL) spectroscopy in a transmission electron microscope to probe the radial breathing mode of plasmonic silver nanodisks. A two-mirror detection system sandwiching the sample collects the CL emission in both directions, that is, backward and forward with respect to the electron beam trajectory. We unambiguously identify a spectral shift of about 8 nm in the CL spectra acquired from both sides and show that this asymmetry is induced by the electron beam itself. By numerical simulations, we confirm the observations and identify the underlying physical effect due to the interference of the CL emission patterns of an electron-beam-induced dipole and the breathing mode. This effect can ultimately limit the achievable fidelity in CL measurements on any system involving multiple excitations and should therefore be considered with care in high-precision experiments.
Keywords
Cathodoluminescence; transmission electron microscopy; plasmonics; radial breathing mode; nanoparticles
Authors
SCHMIDT, F.; HORÁK, M.; STÖGER-POLLACH, M.; KRENN, J.; LOSQUIN, A.; HOHENESTER, U.
Released
13. 1. 2021
Publisher
American Chemical Society
Location
WASHINGTON
ISBN
1530-6984
Periodical
NANO LETTERS
Year of study
21
Number
1
State
United States of America
Pages from
590
Pages to
596
Pages count
7
URL
https://pubs.acs.org/doi/10.1021/acs.nanolett.0c04084
Full text in the Digital Library
http://hdl.handle.net/11012/196545
BibTex
@article{BUT171290, author="Franz {Schmidt} and Arthur {Losquin} and Michal {Horák} and Ulrich {Hohenester} and Michael {Stöger-Pollach} and Joachim {Krenn}", title="Fundamental Limit of Plasmonic Cathodoluminescence", journal="NANO LETTERS", year="2021", volume="21", number="1", pages="590--596", doi="10.1021/acs.nanolett.0c04084", issn="1530-6984", url="https://pubs.acs.org/doi/10.1021/acs.nanolett.0c04084" }