Absence of Charge-Resonance-Enhanced Ionization in Attosecond Pulse Photoionization: Numerical Result on One-Dimensional H2+
ZHANG Zhe1, ZHANG Gui-Zhong1, XIANG Wang-Hua1, W. T. Hill III2
1Key Lab of Optoelectronic Information and Technical Science, College of Precision Instrument and Optoelectronics Engineering (Ministry of Education), Tianjin 300072
2Institute of Physical Science and Technology, University of Maryland, College Park, MD20742, USA
Absence of Charge-Resonance-Enhanced Ionization in Attosecond Pulse Photoionization: Numerical Result on One-Dimensional H2+
ZHANG Zhe1;ZHANG Gui-Zhong1;XIANG Wang-Hua1;W. T. Hill III2
1Key Lab of Optoelectronic Information and Technical Science, College of Precision Instrument and Optoelectronics Engineering (Ministry of Education), Tianjin 300072
2Institute of Physical Science and Technology, University of Maryland, College Park, MD20742, USA
Abstract： We present a numerical result of photoionization rate for the one-dimensional molecular hydrogen ion model exposed to intense light of 1×1016-2×1016W/cm2, 55-as pulse duration, and 800nm wavelength. In contrast to the previous calculation result of charge-resonance-enhanced ionization for lower intensity and much longer pulse, our result exhibits an ionization saturation. The numerical results are interpreted in the field-dressed potential picture as over-the-barrier liberation of electrons. This extremely short pulsewidth and relatively high field phenomenon requests experimental demonstration.
(Multiphoton ionization and excitation to highly excited states)
引用本文:
ZHANG Zhe;ZHANG Gui-Zhong;XIANG Wang-Hua;W. T. Hill III. Absence of Charge-Resonance-Enhanced Ionization in Attosecond Pulse Photoionization: Numerical Result on One-Dimensional H2+[J]. 中国物理快报, 2006, 23(6): 1445-1447.
ZHANG Zhe, ZHANG Gui-Zhong, XIANG Wang-Hua, W. T. Hill III. Absence of Charge-Resonance-Enhanced Ionization in Attosecond Pulse Photoionization: Numerical Result on One-Dimensional H2+. Chin. Phys. Lett., 2006, 23(6): 1445-1447.
2006, Vol. 23 
