Nanostructure-enhanced atomic line emission

M. Sivis, M. Duwe, B. Abel and C. Ropers ()
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M. Sivis: Courant Research Center Nano-Spectroscopy and X-Ray Imaging, University of Göttingen, 37077 Göttingen, Germany
M. Duwe: Courant Research Center Nano-Spectroscopy and X-Ray Imaging, University of Göttingen, 37077 Göttingen, Germany
B. Abel: Ostwald Institute for Physical and Theoretical Chemistry, University of Leipzig
C. Ropers: Courant Research Center Nano-Spectroscopy and X-Ray Imaging, University of Göttingen, 37077 Göttingen, Germany

Nature, 2012, vol. 485, issue 7397, E1-E2

Abstract: Abstract Arising from S. Kim et al. Nature 453, 757–760 (2008)10.1038/nature07012 ; Kim et al. reply Plasmonic nanostructures offer unique possibilities for enhancing linear and nonlinear optical processes1,2,3,4,5,6. Recently, Kim et al.7 reported nanostructure-enhanced high harmonic generation (HHG). Here, using nearly identical conditions, we demonstrate extreme-ultraviolet (EUV) emission from gas-exposed nanostructures, but come to entirely different conclusions: instead of HHG, we observe line emission of neutral and ionized gas atoms. We also discuss fundamental physical aspects limiting nanostructure-based HHG.

Date: 2012
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DOI: 10.1038/nature10978

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