We directly observed an attosecond pulse train and an envelope with mode-resolved autocorrelation signals of above-threshold ionization spectra of photoelectrons excited by multiple-order harmonics, resulting that the pulsewidth in the train should be 450 as.
© 2006 Optical Society of America
(190.0190) Nonlinear optics : Nonlinear optics
(190.4180) Nonlinear optics : Multiphoton processes
(320.0320) Ultrafast optics : Ultrafast optics
(320.7110) Ultrafast optics : Ultrafast nonlinear optics
T. Shimizu, T. Okino, H. Hasegawa, K. Furusawa, Y. Nabekawa, K. Yamanouchi, and K. Midorikawa, "Measurement of Attosecond Beats and Envelopes by Frequency Resolved Autocorrelation," in Conference on Lasers and Electro-Optics/Quantum Electronics and Laser Science Conference and Photonic Applications Systems Technologies, Technical Digest (CD) (Optical Society of America, 2006), paper JTuE2.
References are not available for this paper.