Quantum interference in laser-assisted photo-ionization excited by a femtosecond x-ray pulse

doi:10.1088/1674-1056/17/12/027

中国物理B ›› 2008, Vol. 17 ›› Issue (12): 4492-4497.doi: 10.1088/1674-1056/17/12/027

• ATOMIC AND MOLECULAR PHYSICS • 上一篇下一篇

Quantum interference in laser-assisted photo-ionization excited by a femtosecond 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:2008-05-23 修回日期:2008-07-01 出版日期:2008-12-20 发布日期:2008-12-20
基金资助:
Project supported by the National Natural Science Foundation of China (Grant No 10675014).

Quantum interference in laser-assisted photo-ionization excited by a femtosecond 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:2008-05-23 Revised:2008-07-01 Online:2008-12-20 Published:2008-12-20
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 monochromatic femtosecond x-ray pulses in the presence of a femtosecond laser are investigated. A PES is composed of a set of separate peaks, showing interesting comb-like structures. These structures result from the quantum interferences between photoelectron wave packets generated at different times. The width and the localization of each peak as well as the number of peaks are determined by all the laser and x-ray parameters. Most of peak heights of the PES are higher than the classical predictions.

Abstract: The photoelectron energy spectra (PESs) excited by monochromatic femtosecond x-ray pulses in the presence of a femtosecond laser are investigated. A PES is composed of a set of separate peaks, showing interesting comb-like structures. These structures result from the quantum interferences between photoelectron wave packets generated at different times. The width and the localization of each peak as well as the number of peaks are determined by all the laser and x-ray parameters. Most of peak heights of the PES are higher than the classical predictions.

Key words: femtosecond x-ray pulse, photo-ionization, quantum interference, photoelectron energy spectrum

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) 42.50.-p (Quantum optics)

葛愉成. Quantum interference in laser-assisted photo-ionization excited by a femtosecond x-ray pulse[J]. 中国物理B, 2008, 17(12): 4492-4497.

Ge Yu-Cheng (葛愉成). Quantum interference in laser-assisted photo-ionization excited by a femtosecond x-ray pulse[J]. Chin. Phys. B, 2008, 17(12): 4492-4497.

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Quantum interference in laser-assisted photo-ionization excited by a femtosecond x-ray pulse

Quantum interference in laser-assisted photo-ionization excited by a femtosecond x-ray pulse

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