Regensburg 2025 – wissenschaftliches Programm
Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe
O: Fachverband Oberflächenphysik
O 71: Poster Plasmonics and Nanooptics: Fabrication, Characterization and Applications
O 71.3: Poster
Mittwoch, 19. März 2025, 18:00–20:00, P2
Laser pulse front tilt effects in the observation of SPPs using photoemission electron microscopy — •Hanno Christiansen1, Tobias Eul1, and Michael Bauer2 — 1Institute of Experimental and Applied Physics, Kiel University, 24098 Kiel, Germany — 2Kiel Nano, Surface and Interface Science KiNSIS, Kiel University, 24118 Kiel, Germany
In recent years, PEEM has become an established technique for the investigation of surface plasmon polaritons (SPP). This technique allows, for example, the study of the propagation dynamics of these collective surface excitations with femtosecond resolution or the measurement of their dispersion relations with high spatial resolution. The characteristic signal measured in PEEM results from the coherent superposition of the exciting laser field and the emitted SPP. Based on simulations and experimental data we show in this contribution that the plasmonic PEEM signal is very sensitive to the pulse front tilt of the exciting laser pulse and thus represents a sensor for this often overlooked laser parameter.
Keywords: Puls front tilt; Surface plasmon polariton; PEEM