Abstract Using the numerical solution of the time-dependent Schr?dinger equation of a one-dimensional model atom in a two-colour laser field, we have investigated the effects of the potential models on coherent control of atomic multiphoton ionization. It is found that the photoelectron spectra are obviously different for the long-range (Coulomb-like) and short-range (with no excited bound states) potential model atoms, which are produced by two-colour coherent control of atomic multiphoton ionization in a few laser cycles. Our results indicate that two-colour coherent control of atomic multiphoton ionization can be observed in simulations, depending on the choice of the model potentials.
Received: 04 January 2007
Revised: 17 April 2007
Accepted manuscript online:
PACS:
32.80.Rm
(Multiphoton ionization and excitation to highly excited states)
Fund: Project supported by the National Natural Science
Foundation of China (Grant No 10674112) and the Young Teachers
Foundation of Northwest Normal University (Grant No NWNU-QN-04-25).
Cite this article:
Li Peng-Cheng(李鹏程) and Zhou Xiao-Xin(周效信) Two-colour coherent control of multiphoton ionization: a comparison between long-range and short-range potential model atoms 2007 Chinese Physics 16 2946
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