Publication detail

Fundamental Limit of Plasmonic Cathodoluminescence

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"
}