Phys. Rev. Lett. 83, 4289–4292 (1999)Observation of Attosecond Light Localization in Higher Order Harmonic GenerationReceived 22 March 1999; published in the issue dated 22 November 1999 The superposition of selected higher order harmonics and continuous background, produced in Ar gas through two time delayed 60 fs pulses at 800 nm, is measured as a function of their delay time. An isolated less than 100 as sharp feature, indicative for pulse production in the attosecond regime, followed by a subfemtosecond beating, indicative for the production of trains of sub-fs XUV pulses, is clearly observable in the resulting temporal trace. The trace Fourier transforms to a frequency spectrum composed of harmonics from the selected ensemble and a continuous background that correlates with the observed ultrashort feature. Numerical simulation spectra encompass similar temporal localization. © 1999 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.83.4289
DOI:
10.1103/PhysRevLett.83.4289
PACS:
42.65.Ky, 32.80.Rm, 42.50.Hz, 42.65.Re
See AlsoComment: G. Tempea, A. Scrinzi, F. Krausz, and T. Brabec, Comment on “Observation of Attosecond Light Localization in Higher Order Harmonic Generation”, Phys. Rev. Lett. 87, 109401 (2001). Reply: N. A. Papadogiannis, B. Witzel, C. Kalpouzos, and D. Charalambidis, Papadogiannis et al. Reply:, Phys. Rev. Lett. 87, 109402 (2001). |
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