Deriving x-ray pulse duration from center-of-energy shifts in THz-streaked ionized electron spectraстатья
Статья опубликована в высокорейтинговом журнале
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Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 3 ноября 2021 г.
Аннотация:A fast and robust, yet simple, method has been developed for the immediate
characterization of x-ray pulse durations via IR/THz streaking that uses the center of energy
(COE) of the photoelectron spectrum for the evaluation. The manuscript presents theory and
numerical models demonstrating that the maximum COEs shift as a function of the pulse duration
and compares them to existing data for validation. It further establishes that the maximum COE
can be derived from two COE measurements set at a phase of π/2 apart. The theory, model, and
data agree with each other very well, and they present a way to measure pulse durations ranging
from sub-fs to tens of fs on-the-fly with a fairly simple experimental setup.