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Nonadiabatic Effect on the Rescattering Trajectories of Electrons in Strong Laser Field Ionization Process 被引量:1
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作者 涂心海 郝小雷 +2 位作者 李卫东 胡师林 陈京 《Chinese Physics Letters》 SCIE CAS CSCD 2016年第9期29-31,共3页
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 ap... 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. 展开更多
关键词 of IT in Nonadiabatic Effect on the rescattering Trajectories of Electrons in Strong Laser Field Ionization process on IS that for
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Calculation of the photoelectron spectra under a scaling transform
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作者 叶会亮 吴艳 +1 位作者 张敬涛 邵初寅 《Chinese Physics B》 SCIE EI CAS CSCD 2013年第1期197-201,共5页
By solving the time-dependent Schr6dinger equation, the dependence of photoelectron energy spectra on the binding energy of targets, wavelength and the intensity of laser pulse is exhibited and a scaling law of kineti... By solving the time-dependent Schr6dinger equation, the dependence of photoelectron energy spectra on the binding energy of targets, wavelength and the intensity of laser pulse is exhibited and a scaling law of kinetic energy spectra of both the direct and the rescattered photoelectrons is concluded. The scaling law provides a convenient tool to determine the equivalent photoionization process of various atoms or molecules in various laser fields. The verification of the scaling law by independent methods provides incontestable support to the validity of the scaling law. 展开更多
关键词 scaling law photoelectron energy spectrum rescattering process
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Multiple-plateau structure and scaling relation in photoelectron spectra of high-order above-threshold ionization
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作者 吴艳 叶会亮 +1 位作者 张敬涛 郭东升 《Chinese Physics B》 SCIE EI CAS CSCD 2012年第5期159-166,共8页
By developing a full quantum scattering theory of high-order above-threshold ionization,we study the energy spectra and the angular distributions of photoelectrons from atoms with intense laser fields shining on them.... By developing a full quantum scattering theory of high-order above-threshold ionization,we study the energy spectra and the angular distributions of photoelectrons from atoms with intense laser fields shining on them.We find that real rescattering can occur many times,and even infinite times.The photoelectrons from the rescattering process form a broad plateau in the kinetic-energy spectrum.We further disclose a multiple-plateau structure formed by the high-energy photoelectrons,which absorb many photons during the rescattering process.Moreover,we find that both the angular distributions and the kinetic-energy spectra of photoelectrons obey the same scaling law as that for directly emitted photoelectrons. 展开更多
关键词 photoelectron energy spectrum rescattering process photoelectron angular distribution
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