Quantum interference in laser-assisted photo-ionization excited by a femtosecond x-ray pulse |
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Authors: | Ge Yu-Cheng |
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Institution: | School of Physics and State Key Laboratory of Nuclear
Physics and Technology, Peking University, Beijing 100871,
China |
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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. |
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Keywords: | femtosecond x-ray pulse photo-ionization quantum interference photoelectron energy
spectrum |
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