Open AccessAngular dispersion boost of high order laser harmonics with Carbon nano-rods
Author(s) -
Zsolt Lécz,
А. А. Андреев
Publication year - 2020
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.384078
Subject(s) - optics , extreme ultraviolet , high harmonic generation , laser , harmonics , scattering , light scattering , physics , dispersion (optics) , mie scattering , attenuation coefficient , extreme ultraviolet lithography , materials science , optoelectronics , quantum mechanics , voltage
Periodic surface gratings or photonic crystals are excellent tools for diffracting light and to collect information about the spectral intensity, if the target structure is known, or about the diffracting object, if the light source is well defined. However, this method is less effective in the case of extreme ultraviolet (XUV) light due to the high absorption coefficient of any material in this frequency range. Here we propose a nanorod array target in the plasma phase as an efficient dispersive medium for the intense XUV light which is originated from laser-plasma interactions where various high harmonic generation processes take place. The scattering process is studied with the help of particle-in-cell simulations and we show that the angular distribution of different harmonics after scattering can be perfectly described by a simple interference theory.