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Nonadiabatic Effect on the Rescattering Trajectories of Electrons in Strong Laser Field Ionization Process 被引量:1

Nonadiabatic Effect on the Rescattering Trajectories of Electrons in Strong Laser Field Ionization Process
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摘要 The important features of the rescattering trajectories in strong field ionization process such as the cutoff of the return energy at 3.17Up and that of the final energy at 10Up are obtained, based on the adiabatic approximation in which the initial momentum of the electron is assumed to be zero. We theoretically study the nonadiabatic effect by assuming a nonzero initial momentum on the rescattering trajectories based on the semiclassical simpleman model. We show that the nonzero initial momentum will modify both the maximal return energy at collision and the final energy after backward scattering, but in different ways for odd and even number of return trajectories. The energies are increased for even number of returns but are decreased for odd number of returns when the nonzero (positive or negative) initial momentum is applied. The important features of the rescattering trajectories in strong field ionization process such as the cutoff of the return energy at 3.17Up and that of the final energy at 10Up are obtained, based on the adiabatic approximation in which the initial momentum of the electron is assumed to be zero. We theoretically study the nonadiabatic effect by assuming a nonzero initial momentum on the rescattering trajectories based on the semiclassical simpleman model. We show that the nonzero initial momentum will modify both the maximal return energy at collision and the final energy after backward scattering, but in different ways for odd and even number of return trajectories. The energies are increased for even number of returns but are decreased for odd number of returns when the nonzero (positive or negative) initial momentum is applied.
出处 《Chinese Physics Letters》 SCIE CAS CSCD 2016年第9期29-31,共3页 中国物理快报(英文版)
基金 Supported by the National Natural Science Foundation of China under Grant Nos 11425414 and 11504215 the Scientific Research Training Program of Shanxi University
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