Authors

M. Chini; S. Gilbertson; S. D. Khan;Z. H. Chang

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Abbreviated Journal Title

Opt. Express

Keywords

PULSES; Optics

Abstract

Recent progress in sub-laser-cycle gating of high-order harmonic generation promises to push the limits on optical pulse durations below the atomic unit of time, 24 as, which corresponds to a bandwidth broader than 75 eV. However, the available techniques for attosecond pulse measurement are valid only for narrow-bandwidth spectra, due to one of the key approximations made in the phase retrieval. Here we report a new technique for characterizing attosecond pulses, whereby the spectral phase of the attosecond pulse is extracted from the oscillation component with the dressing laser frequency in the photoelectron spectrogram. This technique, termed PROOF (Phase Retrieval by Omega Oscillation Filtering), can be applied to characterizing attosecond pulses with ultrabroad bandwidths.

Journal Title

Optics Express

Volume

18

Issue/Number

12

Publication Date

1-1-2010

Document Type

Article

Language

English

First Page

13006

Last Page

13016

WOS Identifier

WOS:000278527700104

ISSN

1094-4087

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