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Q: Fachverband Quantenoptik und Photonik

Q 59: Lasers II

Q 59.7: Vortrag

Freitag, 15. März 2024, 12:30–12:45, HS 1015

Far-field petahertz sampling of plasmonic fields — •Kai-Fu Wong^1,2, Weiwei Li^3,4, Zilong Wang^3,4, Vincent Wanie², Erik Månsson², Dominik Höing^1,5, Johannes Blöchl^3,4, Thomas Nubbemeyer^3,4, Andrea Trabattoni^2,6, Holger Lange^1,5, Francesca Calegari^1,2, and Matthias F. Kling^3,4,7 — 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