High-order harmonic generation (HHG) in gases has opened new domains as the extreme ultraviolet (XUV) beams have specific properties 1,2,3 like short duration down to the attosecond level 4,5 and good ...
Coherent terahertz radiation from multiple electron beams excitation within a plasmonic crystal-like structure (a three-dimensional holes array) which is composed of multiple stacked layers with 3 × 3 ...
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