Quantum-mechanical analysis of pulse reconstruction for a narrow bandwidth attosecond x-ray pulse

doi:10.1088/1674-1056/18/4/031

中国物理B ›› 2009, Vol. 18 ›› Issue (4): 1473-1478.doi: 10.1088/1674-1056/18/4/031

• ATOMIC AND MOLECULAR PHYSICS • 上一篇下一篇

Quantum-mechanical analysis of pulse reconstruction for a narrow bandwidth attosecond x-ray pulse

葛愉成

School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China

收稿日期:2008-07-01 修回日期:2008-07-17 出版日期:2009-04-20 发布日期:2009-04-20
基金资助:
Project supported by the National Natural Science Foundation of China (Grant No 10675014).

Quantum-mechanical analysis of pulse reconstruction for a narrow bandwidth attosecond x-ray pulse

Ge Yu-Cheng(葛愉成)^†

School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China

Received:2008-07-01 Revised:2008-07-17 Online:2009-04-20 Published:2009-04-20
Supported by:
Project supported by the National Natural Science Foundation of China (Grant No 10675014).

摘要/Abstract

摘要： The photoelectron energy spectra (PESs) excited by narrow bandwidth attosecond x-ray pulses in the presence of a few-cycle laser are quantum-mechanically calculated. Transfer equations are used to reconstruct the detailed temporal structure of an attosecond x-ray pulse directly from a measured PES. Theoretical analysis shows that the temporal uncertainties of the pulse reconstruction depend on the x-ray bandwidth. The procedure of pulse reconstruction is direct and simple without making any previous pulse assumption, data fitting analysis and time-resolved measurement of PESs. The temporal measurement range is half of a laser optical cycle.

Abstract: The photoelectron energy spectra (PESs) excited by narrow bandwidth attosecond x-ray pulses in the presence of a few-cycle laser are quantum-mechanically calculated. Transfer equations are used to reconstruct the detailed temporal structure of an attosecond x-ray pulse directly from a measured PES. Theoretical analysis shows that the temporal uncertainties of the pulse reconstruction depend on the x-ray bandwidth. The procedure of pulse reconstruction is direct and simple without making any previous pulse assumption, data fitting analysis and time-resolved measurement of PESs. The temporal measurement range is half of a laser optical cycle.

Key words: attosecond measurement, photoelectron energy spectrum, transfer equation, pulse reconstruction

中图分类号: (Photoionization of atoms and ions)

32.80.Fb

31.15.-p (Calculations and mathematical techniques in atomic and molecular physics) 03.65.Ge (Solutions of wave equations: bound states)

葛愉成. Quantum-mechanical analysis of pulse reconstruction for a narrow bandwidth attosecond x-ray pulse[J]. 中国物理B, 2009, 18(4): 1473-1478.

Ge Yu-Cheng(葛愉成). Quantum-mechanical analysis of pulse reconstruction for a narrow bandwidth attosecond x-ray pulse[J]. Chin. Phys. B, 2009, 18(4): 1473-1478.

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Quantum-mechanical analysis of pulse reconstruction for a narrow bandwidth attosecond x-ray pulse

Quantum-mechanical analysis of pulse reconstruction for a narrow bandwidth attosecond x-ray pulse

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