Harmonics to quicken the pulse
Article Abstract:
The output pulse in a set of harmonics produced by a titanium-sapphire laser, in ultra-fast X-ray technology, consists of a series of sub-pulses. Each pulse is separated from the following one by half the period of the fundamental. Ultra-short pulses obtain high photon densities with relatively moderate numbers of photons. Advances have been made in the production of femtosecond X-ray pulses and the analysis of sub-femtosecond properties of X-rays generated by high-harmonic generation.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1996
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Attosecond pulses at last
Article Abstract:
Papadogiannis and colleagues have generated attosecond pulses using short-wavelength harmonics generated when rare gases ionize due to irradiation from femto-second pulses. They have been able to measure th duration of the pulses using an experimentally simple, although theoretically complex technique.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 2000
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Direct observation of attosecond light bunching
Article Abstract:
The quantitative investigation of attosecond light localization and ultrafast dynamics which depends on the modelling of the cross-correlation process between the extreme-ultraviolet pulses and the fundamental laser field is discussed.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 2003
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