DPG Phi
Verhandlungen
Verhandlungen
DPG

Regensburg 2016 – wissenschaftliches Programm

Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe

HL: Fachverband Halbleiterphysik

HL 55: Photonics and Nanooptics I: Nonlinear Response

HL 55.8: Vortrag

Mittwoch, 9. März 2016, 12:15–12:30, S051

Shaping the Nonlinear Near-Field of Single Gold Nanostructures — •Daniela Wolf1,2, Julian Obermeier1, Thorsten Schumacher1, and Markus Lippitz11Experimental Physics III, University of Bayreuth, Universitaetsstr. 30, 95447 Bayreuth, Germany — 2Max Planck Institute for Solid State Research, Heisenbergstr. 1, 70569 Stuttgart, Germany

Light scattering at plasmonic nanoparticles and their assemblies has led to a wealth of applications in metamaterials and nanooptics. While the shaping of fields around nanostructures is widely studied, the influence of the field inside the nanostructures is often overlooked. The linear field distribution inside the structure taken to the third power causes third-harmonic generation, a nonlinear optical response of matter. Here we demonstrate by a far-field Fourier imaging method how this simple fact can be used to shape fields around already a single particle alone. We employ this scheme to switch the third-harmonic emission from a single point source to two spatially separated but coherent sources, as in Young's double slit assembly. Finally, we present some recent results on more advanced structures combining nonlinear plasmonics and waveguiding.

100% | Mobil-Ansicht | English Version | Kontakt/Impressum/Datenschutz
DPG-Physik > DPG-Verhandlungen > 2016 > Regensburg