Dresden 2011 – scientific programme
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O: Fachverband Oberflächenphysik
O 9: Invited Talk (Walter Pfeiffer)
O 9.1: Invited Talk
Monday, March 14, 2011, 14:00–14:45, TRE Phy
Ultrafast nanooptical control — •Walter Pfeiffer1, Tobias Brixner2, and Martin Aeschlimann3 — 1Fakultät für Physik, Universität Bielefeld, Universitätsstr. 25, 33615 Bielefeld, Germany — 2Institut für Physikalische und Theoretische Chemie, Universität Würzburg, Am Hubland, 97074 Würzburg — 3Fachbereich Physik and Research Center OPTIMAS, Technische Universität Kaiserslautern, Erwin-Schrödinger-Str. 46, 67663 Kaiserslautern
The most general investigation and exploitation of light-induced processes require simultaneous control over spatial and temporal properties of the electro-magnetic field on a femtosecond time- and nanometer length-scale. Based on the combination of polarization pulse shaping and time-resolved two-photon photoemission electron microscopy we demonstrate such control over nanoscale spatial and ultrafast temporal degrees of freedom of an electromagnetic excitation in the vicinity of a nanostructure. The present status of nanooptical control is reviewed, different control mechanisms are demonstrated, and the prospects of open-loop control of particular nanophotonic excitations are discussed. The flexible simultaneous control of temporal and spatial properties of nanophotonic excitations opens new possibilities to tailor and optimize the light-mater interaction in spectroscopic methods as well as in nanophotonic applications.