Detail publikačního výsledku

Fundamental Limit of Plasmonic Cathodoluminescence

SCHMIDT, F.; HORÁK, M.; STÖGER-POLLACH, M.; KRENN, J.; LOSQUIN, A.; HOHENESTER, U.

Originální název

Fundamental Limit of Plasmonic Cathodoluminescence

Anglický název

Fundamental Limit of Plasmonic Cathodoluminescence

Druh

Článek WoS

Originální abstrakt

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.

Anglický abstrakt

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.

Klíčová slova

Cathodoluminescence; transmission electron microscopy; plasmonics; radial breathing mode; nanoparticles

Klíčová slova v angličtině

Cathodoluminescence; transmission electron microscopy; plasmonics; radial breathing mode; nanoparticles

Autoři

SCHMIDT, F.; HORÁK, M.; STÖGER-POLLACH, M.; KRENN, J.; LOSQUIN, A.; HOHENESTER, U.

Rok RIV

2021

Vydáno

13.01.2021

Nakladatel

American Chemical Society

Místo

WASHINGTON

ISSN

1530-6984

Periodikum

NANO LETTERS

Svazek

21

Číslo

1

Stát

Spojené státy americké

Strany od

590

Strany do

596

Strany počet

7

URL

https://pubs.acs.org/doi/10.1021/acs.nanolett.0c04084

Plný text v Digitální knihovně

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"
}

Dokumenty

NanoLetters21(2021)590-596