Freiburg 2024 – scientific programme
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Q: Fachverband Quantenoptik und Photonik
Q 59: Lasers II
Q 59.7: Talk
Friday, March 15, 2024, 12:30–12:45, HS 1015
Far-field petahertz sampling of plasmonic fields — •Kai-Fu Wong1,2, Weiwei Li3,4, Zilong Wang3,4, Vincent Wanie2, Erik Månsson2, Dominik Höing1,5, Johannes Blöchl3,4, Thomas Nubbemeyer3,4, Andrea Trabattoni2,6, Holger Lange1,5, Francesca Calegari1,2, and Matthias F. Kling3,4,7 — 1The Hamburg Centre for Ultrafast Imaging, Universität Hamburg, Luruper Chaussee 149, 22761 Hamburg, Germany — 2Center for Free-Electron Laser Science, DESY, Notkestr. 85, 22607 Hamburg, Germany — 3Max Planck Institute of Quantum Optics, MPQ, Hans-Kopfermann-Straße 1, 85748 Munich, Germany — 4Ludwig-Maximilians-Universität München, LMU, Am Coloumbwall 1, 85748 Munich, Germany — 5Institute of Physical Chemistry, Universität Hamburg, Grindelallee 117, 20146 Hamburg, Germany — 6Institute of Quantum Optics, Leibniz Universität Hannover, Welfengarten 1, 30167 Hannover, Germany — 7SLAC National Accelerator Laboratory, Stanford University, 2575 Sand Hill Rd, Menlo Park, 94025 California, USA
We demonstrate the realtime observation of linear plasmonic fields by optical field sampling. A comparison between non-resonantly and resonantly excited samples shows that dephasing features of the resonantly excited case sustain into the far-field domain. Our findings also demonstrate the ability to manipulate the spectral properties of ultrashort laser pulses by plasmonic samples, which can act as metasurfaces.
Keywords: Petahertz; Plasmonics; Field Sampling; Metasurface; Ultrafast dynamics