Spatiotemporal isolation of attosecond soft X-ray pulses in the water window.
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ABSTRACT: Attosecond pulses at photon energies that cover the principal absorption edges of the building blocks of materials are a prerequisite for time-resolved probing of the triggering events leading to electronic dynamics such as exciton formation and annihilation. We demonstrate experimentally the isolation of individual attosecond pulses at the carbon K-shell edge (284 eV) in the soft X-ray water window with pulse duration below 400 as and with a bandwidth supporting a 30-as pulse duration. Our approach is based on spatiotemporal isolation of long-wavelength-driven harmonics and validates a straightforward and scalable approach for robust and reproducible attosecond pulse isolation.
SUBMITTER: Silva F
PROVIDER: S-EPMC4382990 | biostudies-literature |
REPOSITORIES: biostudies-literature
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