Relativistic surface plasmon enhanced harmonic generation from gratings

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.
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Submitted on : Tuesday, August 13, 2019 - 5:27:19 PM
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L. Fedeli, A. Sgattoni, G. Cantono, A. Macchi. Relativistic surface plasmon enhanced harmonic generation from gratings. Applied Physics Letters, American Institute of Physics, 2017, 110 (5), pp.051103. ⟨10.1063/1.4975365⟩. ⟨hal-02266262⟩



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