TY - JOUR
T1 - Theoretical Study of the Two-Dimensional Momentum Spectra of H- Ion in the Intense Laser Fields
AU - Sun , Chang-Ping
AU - Cui , Bao-Feng
JO - Journal of Atomic and Molecular Sciences
VL - 2
SP - 178
EP - 186
PY - 2014
DA - 2014/05
SN - 5
DO - http://doi.org/10.4208/jams.090913.121413a
UR - https://global-sci.org/intro/article_detail/jams/8323.html
KW - strong field approximation method, time-dependent Schrödinger equation, momentum spectra.
AB - <p style="text-align: justify;">By using two model potentials chosen, the second outermost back rescattered
ridges (BRR) of the two-dimensional (2D) momentum spectra of $H^-$ ion in the
linear polarization laser fields are studied under the strong-field approximation (SFA).
The results show that the polarization potentials in the two model potentials have
little effect on the 2D momentum spectra, the number of BRR increases and the fluctuation
of angular distributions along the second BRR decreases with the increase of the
laser intensity, but the accurate electron-atom elastic scattering cross sections can be
retrieved directly along the second outermost BRR by the polynomial fitting method.</p>