Regensburg 2013 – wissenschaftliches Programm

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PV: Plenarvorträge

PV X

PV X: Preisträgervortrag

Mittwoch, 13. März 2013, 13:15–13:45, H1

Metallic Nanostructures in Strong Light Fields: Phenomena and Applications — •Claus Ropers — Materials Physics Institute and Courant Research Centre Physics, University of Göttingen, 37077 Göttingen, Germany --- Laureate of the Walter-Schottky-Prize

Metallic nanostructures provide a versatile means to tailor the propagation and localization of light fields on sub-wavelength dimensions. The associated near-field enhancements can amplify numerous nonlinear processes including harmonic generation, nonlinear photoemission and atomic or molecular ionization. In the vicinity of nanostructures, such phenomena display distinctive properties and scalings that are governed by the confined light-matter interaction. These features promise fundamental discovery as well as novel applications in imaging and spectroscopy with ultrahigh spatio-temporal resolution.

In this talk, I will present several experimental directions in which the optical properties of nanostructures are harnessed for these goals using far-infrared to extreme ultraviolet (EUV) wavelengths. Examples include nonlinear EUV generation in plasmonic waveguides and resonant bow tie antennas as well as tip-enhanced photoemission with unique strong-field dynamics. Furthermore, the generation of ultrashort high-brilliance electron pulses from sharp metal tips and their application in time-resolved electron imaging and diffraction will be discussed.