Relativistic surface plasmon enhanced harmonic generation from gratings

Year: 2017

Authors: Fedeli L., Sgattoni A., Cantono G., Macchi A.,

Autors Affiliation: 1) Department of Energy, Politecnico di Milano, 20133 Milano, Italy
2) National Institute of Optics, National Research Council (CNR/INO) A.Gozzini unit, 56124 Pisa, Italy
3) Enrico Fermi Department of Physics, University of Pisa, 56127 Pisa, Italy
4) LULI-UPMC: Sorbonne Universities, CNRS, École Polytechnique, CEA, 75013 Paris, France
5) LESIA, Observatoire de Paris, CNRS, UPMC: Sorbonne Universities, 92195 Meudon, France
6) LIDYL, CEA, CNRS, Université Paris-Saclay, CEA Saclay, 91191 Gif-sur-Yvette, France
7) Université Paris Sud, Paris, 91400 Orsay, France

Abstract: The role of relativistic surface plasmons (SPs) in high order harmonic emission from laser-irradiated grating targets has been investigated by means of particle-in-cell simulations. SP excitation drives a strong enhancement of the intensity of harmonics, particularly in the direction close to the surface tangent. The SP-driven enhancement overlaps with the angular separation of harmonics generated by the grating, which is beneficial for applications requiring monochromatic extreme ultraviolet (XUV) pulses.


Volume: 110 (5)      Pages from: 051103-1  to: 051103-5

KeyWords: surface plasmons; high harmonic generation; high field plasmonics; plasma simulation; XUV pulses
DOI: 10.1063/1.4975365

Citations: 15
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