Attosecond Spectral Shearing Interferometry | Zendy

F. Quéré | Zendy; Jiro Itatani | Zendy; G. L. Yudin | Zendy; P. B. Corkum | Zendy

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Attosecond Spectral Shearing Interferometry

Author(s) -

F. Quéré,

Jiro Itatani,

G. L. Yudin,

P. B. Corkum

Publication year - 2003

Publication title -

physical review letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 3.688

H-Index - 673

eISSN - 1079-7114

pISSN - 0031-9007

DOI - 10.1103/physrevlett.90.073902

Subject(s) - attosecond , photoionization , interferometry , physics , wave packet , ionization , shearing (physics) , optics , laser , atomic physics , ultrashort pulse , atom interferometer , quantum mechanics , ion , astronomical interferometer , thermodynamics

We show that the complete characterization of arbitrarily short isolated attosecond x-ray pulses can be achieved by applying spectral shearing interferometry to photoelectron wave packets. These wave packets are coherently produced through the photoionization of atoms by two time-delayed replicas of the x-ray pulse, and are shifted in energy with respect to each other by simultaneously applying a strong laser field. The x-ray pulse is reconstructed with the algorithm developed for optical pulses, which requires no knowledge of ionization physics. Using a 800-nm shearing field, x-ray pulses shorter than ~400 asec can be fully characterized.Peer reviewed: NoNRC publication: Ye

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