Regensburg 2013 – wissenschaftliches Programm

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O: Fachverband Oberflächenphysik

O 36: Poster Session II (Organic films and electronics, photoorganics; Nanostructures; Plasmonics and nanooptics, Surface chemical reactions and heterogeneous catalysis, Surface dynamics )

O 36.45: Poster

Dienstag, 12. März 2013, 18:15–21:45, Poster B2

ToF-PEEM for Probing and Control of Nanoplasmonic Optical Fields at Ultrahigh Spatiotemporal Resolutions — •Soo Hoon Chew^1,2, Alexander Gliserin^1,2, Matthias Kübel², Huanglei Bian¹, Kellie Pearce^1,2, Christian Späth¹, Florian Schertz³, Jürgen Schmidt¹, Matthias Kling², and Ulf Kleineberg¹ — ¹Faculty of Physics, Ludwig Maximilian University of Munich, Germany — ²Max Planck Institute of Quantum Optics, Germany — ³Institute of Physics, University of Mainz, Germany

The attosecond plasmonic field microscope was developed to study the plasmonic dynamics in nanostructured surfaces with attosecond temporal and nanometer spatial resolution. We obtained a spatial resolution of 200 nm from imaging the gold nanostructures using time-of-flight-photoemission electron microscopy (ToF-PEEM) in combination with extreme ultraviolet attosecond pulses from a high harmonic generation source. We find that energy-filtered imaging could reduce the chromatic aberrations and the primary electrons are not affected by the space charge problem. Recently, strong carrier-envelope phase (CEP) effects are shown to be important in controlling electron motion in the matters. In order to investigate and control CEP effects on plasmonic nanostructures for every single laser shot, the phase-tagged ToF-PEEM has been developed. First experiments measuring CEP dependence on single gold nanoparticles have been performed with 10 kHz few-cycle laser pulses. These experiments demonstrate first steps toward the temporal characterization and CEP control of nanoplasmonic fields in a femtosecond optical-pump/attosecond XUV-probe scheme.