2015/09/30 by Zi-Yu Chen, Mykyta Cherednychek, A. Pukhov +1 · 6 citations
Engineering · Physics and Astronomy · #Atomic physics #Attosecond #Extreme ultraviolet #Laser #Laser-Matter Interactions and Applications #Laser-Plasma Interactions and Diagnostics #Laser-induced spectroscopy and plasma #Optics #Oscillation (cell signaling) #Physics #Plasma #Quantum mechanics #Ultrashort pulse #Ultraviolet #physics.plasm-ph
paper · pdf · doi:10.1088/1367-2630/18/6/063014
published in New Journal of Physics 18(6), 063014 (IOP Publishing) · 19 pages, 10 figures
arxiv created 2016/06/09 · openalex publication_date 2016/06/09 · arxiv updated 2016/08/18 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We present a new mechanism of attosecond extreme-ultraviolet (XUV) pulses generation from a relativistic laser-driven overdense plasma surfaces in the wavebreaking regime. Through particle-in-cell simulations and analysis, we demonstrate that the observed ultrashort XUV emission for the parameters we considered is predominantly due to a strong plasma-density oscillation subsequent to wavebreaking. The coupling of the strong density variation and the transverse fields in the front surface layer gives rise to the transmitted emission with frequencies mainly around the local plasma frequency. This mechanism provides new insights into the scenarios of XUV generation from solid surfaces and the dynamics of laser–plasma interactions.