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Schörner, Christian ; Lippitz, Markus:
Single Molecule Nonlinearity in a Plasmonic Waveguide.
In: Nano Letters.
Bd. 20
(2020)
Heft 3
.
- S. 2152-2156.
ISSN 1530-6992
DOI: https://doi.org/10.1021/acs.nanolett.0c00196
Abstract
Plasmonic waveguides offer the unique possibility to confine light far below the diffraction limit. Past room temperature experiments focused on efficient generation of single waveguide plasmons by a quantum emitter. However, only the simultaneous interaction of the emitter with multiple plasmonic fields would lead to functionality in a plasmonic circuit. Here, we demonstrate the nonlinear optical interaction of a single molecule and propagating plasmons. An individual terrylene diimide (TDI) molecule is placed in the nanogap between two single-crystalline silver nanowires. A visible wavelength pump pulse and a red-shifted depletion pulse travel along the waveguide, leading to stimulated emission depletion (STED) in the observed fluorescence. The efficiency increases by up to a factor of 50 compared to far-field excitation. Our study thus demonstrates remote nonlinear four-wave mixing at a single molecule with propagating plasmons. It paves the way toward functional quantum plasmonic circuits and improved nonlinear single-molecule spectroscopy.
Weitere Angaben
| Publikationsform: | Artikel in einer Zeitschrift |
|---|---|
| Begutachteter Beitrag: | Ja |
| Keywords: | plasmonic nanocircuit; quantum emitter; single-crystalline silver flake; two-wire transmission line; stimulated emission depletion STED; nonlinear optics |
| Institutionen der Universität: | Fakultäten > Fakultät für Mathematik, Physik und Informatik > Physikalisches Institut > Lehrstuhl Experimentalphysik III - Nanooptik > Lehrstuhl Experimentalphysik III - Nanooptik - Univ.-Prof. Dr. Markus Lippitz Fakultäten Fakultäten > Fakultät für Mathematik, Physik und Informatik Fakultäten > Fakultät für Mathematik, Physik und Informatik > Physikalisches Institut Fakultäten > Fakultät für Mathematik, Physik und Informatik > Physikalisches Institut > Lehrstuhl Experimentalphysik III - Nanooptik |
| Titel an der UBT entstanden: | Ja |
| Themengebiete aus DDC: | 500 Naturwissenschaften und Mathematik > 530 Physik |
| Eingestellt am: | 16 Apr 2020 06:51 |
| Letzte Änderung: | 24 Jan 2022 14:18 |
| URI: | https://eref.uni-bayreuth.de/id/eprint/54640 |