Harmonics Generation in the Laser-Induced Plasmas of Metal and Semiconductor Carbide Nanoparticles
Vyacheslav V. KimLaboratory of Nonlinear Optics, Institute of Astronomy, University of Latvia, Jelgavas Iela 3, LV-1004 Riga, LatviaSrinivasa Rao KondaThe GPL Photonics Laboratory, State Key Laboratory of Applied Optics, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, ChinaWeili YuThe GPL Photonics Laboratory, State Key Laboratory of Applied Optics, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, ChinaWei LiThe GPL Photonics Laboratory, State Key Laboratory of Applied Optics, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, ChinaR. A. GaneevDepartment of Physics, Voronezh State University, 394006 Voronezh, Russia
ABI
Аннотация
Carbon-containing plasma is an attractive medium for generation of harmonics of laser pulses in the extreme ultraviolet range. We ablate two metal carbide (B4C and Cr3C2) nanoparticles and silicon carbide (SiC) nanoparticles and generate harmonics after propagation of 35 fs pulses through the laser-induced plasmas. We analyze the spectra, spectral shifts, and splitting of harmonics from nanoparticles-contained plasmas, which demonstrate the chirp-related harmonic cut-off scaling. In addition, we present the simplified two-color pump model calculations of HHG based on the strong field approximation.
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Показатели — AkademScholar · Скоро