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Regensburg 2013 – scientific programme

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O: Fachverband Oberflächenphysik

O 7: Plasmonics and Nanooptics I

O 7.9: Talk

Monday, March 11, 2013, 12:30–12:45, H31

Extreme ultraviolet light generation enhanced by plasmonic nanostructures — •Murat Sivis1, Matthias Duwe1, Bernd Abel2, and Claus Ropers11Materials Physics Institute and Courant Research Centre, University of Göttingen, Friedrich-Hund-Platz 1, 37077 Göttingen — 2Leibniz Institute of Surface Modification, University of Leipzig, Permoserstr. 15, 04318 Leipzig

The near-field enhancement in metallic nanostructures can be used to study numerous strong-field effects within confined volumes, such as the generation of extreme ultraviolet (EUV) light. [1,2] Here, we present a comprehensive study of highly nonlinear processes in plasmonic nanostructures, including resonant bow-tie antennas as well as tapered hollow waveguides. In particular, we will discuss the excitation mechanisms and spectral characteristics of nanostructure-enhanced fluorescent line emission from noble gases. To this end, we have developed a method to gauge plasmonic fields in nanostructures, which is based on the spectral fingerprint of strong-field fluorescence. Prospects and limitations of EUV generation in nanoscopic volumes will be elucidated.
[1] S. Kim, et al., Nature 453, 757 (2008)

[2] M. Sivis, et al., Nature 485, E1 (2012)

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