Effect of partial temporal coherence of XUV pulses in IR-laser-assisted photoionizationстатья
Статья опубликована в высокорейтинговом журнале
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Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.
Аннотация:The effect of partial temporal coherence of free-electron laser (FEL) pulses in IR-laser-assisted short-pulse photoionization of atoms is theoretically analyzed. In a typical two-color photoionization experiment, when an atom is ionized by extreme ultraviolet photons in the presence of a strong IR laser field, several sidebands are produced in the electron spectrum at both sides of the photoline. The stochastic nature of the FEL radiation leads to a broadening of the sidebands. When the coherence time is short, shorter than the inverse frequency of the
IR field, the sidebands cannot be observed. However, in angle-resolved experiments a certain structure in the spectrum can be seen as a remnant of the sideband gross structure.