Harald Giessen
University of Stuttgart
We present an ultrafast vector microscope with 10 nm spatial and subfemtosecond temporal resolution which is capable of mapping all three vector components of the electric field as well as the magnetic field of light on nanophotonic structures. As first application, we record and analyze the temporal evolution of plasmonic skyrmions and the skyrmion number on a nanostructured gold surface.
References
Ultrafast vector imaging of plasmonic skyrmion dynamics with deep subwavelength resolutionT. Davis, D. Janoschka, P. Dreher, B. Frank, F. Meyer zu Heringdorf and H. Giessen Science 368, eaba6415 (2020).
Revealing the subfemtosecond dynamics of orbital angular momentum in nanoplasmonic vortices G. Spektor, D. Kilbane, A. Mahro, B. Frank, S. Ristok, L. Gal, P. Kahl, D. Podbiel, S. Mathias, H. Giessen, F. Meyer zu Heringdorf, M. Orenstein and M. Aeschlimann Science 355, 1187 (2017).
Date: Tuesday, 28 June 16:15
Location: Lecture Hall 05.01, Institute of Physics,
University of Graz, Universitätsplatz 5
Online: https://unimeet.uni-graz.at/b/tho-mxu-pqp-ua4
Host: Thomas Weiss
For a regularly updated colloquium program see:
www.if.tugraz.at/colloquium.html