2009/03/30 by Jing Wang, Wang, Z. P., Dinh, P. M. +3
Neuroscience · Physics and Astronomy · #Atomic and Molecular Clusters (physics.atm-clus) #Computational Physics (physics.comp-ph) #FOS: Physical sciences #Laser-Matter Interactions and Applications #Photoreceptor and optogenetics research #Spectroscopy and Quantum Chemical Studies
paper · pdf · doi:10.48550/arxiv.0903.5253
openalex publication_date 2009/03/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
Applying time-dependent local density approximation (TDLDA), we study the high-order harmonic generation (HHG) of ethylene subjected to the one-color (ω=2.72 eV) and the two-color (ω1=2.72 eV and ω2=5.44 eV) ultrashort intense laser pulses. The HHG spectrum of ethylene in the one-color laser field shows the obvious plateaus and odd order harmonics are produced while the two-color laser field can result in the breaking of the symmetry and generation of the even order harmonic. The ionization probabilities are obtained showing the increase of the ionization probability of higher charge state by the two-color laser field. The temporal structures of HHG spectrum of ethylene is explored by means of the time-frequency analysis showing new insights of the HHG mechanisms in the one-color and the two-color laser fields.