TY - JOUR
T1 - Theoretical Exploration of the Interference Minimum in Molecular High-Order Harmonic Generation
AU - Li , Liqing
AU - Xu , Yuanyuan
AU - Miao , Xiangyang
JO - Journal of Atomic and Molecular Sciences
VL - 1
SP - 1
EP - 10
PY - 2016
DA - 2016/07
SN - 7
DO - http://doi.org/10.4208/jams.080815.091015a
UR - https://global-sci.org/intro/article_detail/jams/8099.html
KW - High-order harmonic generation, Interference minimum, Non-Born-Oppenheimer approximation.
AB - <p style="text-align: justify;">The interference minimum in the molecular high-order harmonic generation
is studied by numerically solving the non-Born-Oppenheimer approximation
time-dependent Schrödinger equation. The results show that two kinds of interference
minima appear in the high-order harmonic spectrum when the hydrogen molecular
ion is exposed to the laser pulse. Furthermore, by adjusting wavelength of the laser as
well as initial condition of nucleus, it is found that two kinds of interference minima
are ascribed to the molecular structure and the electronic dynamics behavior induced
by the laser field, respectively. Besides, the time-frequency distributions and the electron
wave packet distributions are calculated to better understand the mechanism of
the minimum.</p>