Dresden 2014 – wissenschaftliches Programm
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O: Fachverband Oberflächenphysik
O 79: Plasmonics and Nanooptics IV
O 79.1: Vortrag
Donnerstag, 3. April 2014, 16:00–16:15, TRE Ma
A Plasmon Autocorrelator — •Christoph Lemke1, Till Leißner1, Jörn Radke1, Jacek Fiutowski2, Jakob Kjelstrup-Hansen2, Horst-Günter Rubahn2, and Michael Bauer1 — 1University of Kiel, IEAP, Leibnizstraße 19, 24118 Kiel, Germany — 2University of Southern Denmark, Mads Clausen Institute, NanoSYD, Alsion 2, DK-6400 Sønderborg, Denmark
Surface plasmon polaritons (SPP) are considered as a main component in future broadband and ultrafast nanophotonic devices. This perspective asks for methods that enable one to determine in-situ the temporal and spectral properties of ultrashort SPP pulses.
In this contribution we demonstrate the realization of a plasmonic autocorrelator [1] for the characterization of SPP pulse parameters. A wedge shaped structure is used to continuously increase the time delay between two interfering SPPs. The autocorrelation signal is monitored by non-linear two-photon photoemission electron microscopy. The presented approach is applicable to other SPP sensitive detection schemes that provide only moderate spatial resolution and may therefore be of general interest in the field of ultrafast plasmonics.
[1] Lemke, C. et al. Measurement of surface plasmon autocorrelation functions. Opt. Express 21, 4700-4705 (2013).