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Controlling Rydberg excitation process with shaped intense ultrashort laser pulses
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作者 Xiao-Yun Zhao chun-cheng wang +3 位作者 Shi-Lin Hu Wei-Dong Li Jing Chen Xiao-Lei Hao 《Chinese Physics B》 SCIE EI CAS CSCD 2019年第8期79-83,共5页
We perform a theoretical investigation on the control over the atomic excitation of Rydberg states with shaped intense ultrashort laser pulses. By numerically solving the time-dependent Schr?dinger equation(TDSE), w... We perform a theoretical investigation on the control over the atomic excitation of Rydberg states with shaped intense ultrashort laser pulses. By numerically solving the time-dependent Schr?dinger equation(TDSE), we systematically study the dependence of the population of the Rydberg states on the π phase step position in the frequency spectra of the laser pulse for different intensities, central wavelengths and pulse durations. Our results show that the Rydberg excitation process can be effectively modulated using shaped intense laser pulses with the laser intensity as high as 1 × 1014 W/cm2. Our work also have benefit to the future investigation to find out the dominant mechanism behind the excitation of Rydberg states in strong laser fields. 展开更多
关键词 SHAPED laser PULSE RYDBERG STATES EXCITATION INTENSE field
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Efficient solver for time-dependent Schrodinger equation with interaction between atoms and strong laser field
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作者 Sheng-Peng Zhou Ai-Hua Liu +2 位作者 Fang Liu chun-cheng wang Da-Jun Ding 《Chinese Physics B》 SCIE EI CAS CSCD 2019年第8期66-72,共7页
We present a parallel numerical method of simulating the interaction of atoms with a strong laser field by solving the time-depending Schr?dinger equation(TDSE) in spherical coordinates. This method is realized by com... We present a parallel numerical method of simulating the interaction of atoms with a strong laser field by solving the time-depending Schr?dinger equation(TDSE) in spherical coordinates. This method is realized by combining constructing block diagonal matrices through using the real space product formula(RSPF) with splitting out diagonal sub-matrices for short iterative Lanczos(SIL) propagator. The numerical implementation of the solver guarantees efficient parallel computing for the simulation of real physical problems such as high harmonic generation(HHG) in these interaction systems. 展开更多
关键词 time-dependent Schrodinger equation Strong laser fields Parallel numerical solver
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Role of rotational state-selected for nonadiabatic alignment: OCS molecules in femtosecond laser fields 被引量:1
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作者 Rui-Han Zhu chun-cheng wang +4 位作者 Si-Zuo Luo Xue Yang Mei-Xia Zhang Fu-Chun Liu Da-Jun Ding 《Frontiers of physics》 SCIE CSCD 2013年第2期236-240,共5页
Nonadiabatic alignment by intense nonresonant the spatial direction of molecules: By solving the the degree of alignment of the molecules initially laser fields is a versatile technique to manipulate time-dependent S... Nonadiabatic alignment by intense nonresonant the spatial direction of molecules: By solving the the degree of alignment of the molecules initially laser fields is a versatile technique to manipulate time-dependent SchrSdinger equation numerically in different rotational state are calculated and the results show that the degree of alignment strongly depends on the initial rotational state. Thus, the present study indicates that, for obtaining a high degree of alignment for molecules, appropriate selection of molecular rotational states is necessary. 展开更多
关键词 nonadiabatic alignment rotational state-selection linear triatomic molecule
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