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Chen, Tzu-Yu ; Obermeier, Julian ; Schumacher, Thorsten ; Lin, Fan-Cheng ; Huang, Jer-Shing ; Lippitz, Markus ; Huang, Chen-Bin:
Modal Symmetry Controlled Second-Harmonic Generation by Propagating Plasmons.
In: Nano Letters.
Bd. 19
(2019)
Heft 9
.
- S. 6424-6428.
ISSN 1530-6992
DOI: https://doi.org/10.1021/acs.nanolett.9b02630
Abstract
A new concept for second-harmonic generation (SHG) in an optical nanocircuit is proposed. We demonstrate both theoretically and experimentally that the symmetry of an optical mode alone is sufficient to allow SHG even in centro-symmetric structures made of centro-symmetric material. The concept is realized using a plasmonic two-wire transmission-line (TWTL), which simultaneously supports a symmetric and an antisymmetric mode. We first confirm that emission of second-harmonic light into the symmetric mode of the waveguide is symmetry-allowed when the fundamental excited waveguide modes are either purely symmetric or antisymmetric. We further switch the emission into the antisymmetric mode when a controlled mixture of the fundamental modes is excited simultaneously. Our results open up a new degree of freedom into the designs of nonlinear optical components and should pave a new avenue toward multifunctional nanophotonic circuitry.
Weitere Angaben
| Publikationsform: | Artikel in einer Zeitschrift |
|---|---|
| Begutachteter Beitrag: | Ja |
| Keywords: | Surface plasmon polaritons; second-harmonic generation; surface nonlinear optics; optical nanocircuit; polarization-selective control |
| 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: | 04 Sep 2019 06:17 |
| Letzte Änderung: | 24 Jan 2022 14:21 |
| URI: | https://eref.uni-bayreuth.de/id/eprint/52127 |