TY - JOUR
T1 - Observation and analysis of an interferometric autocorrelation trace of an attosecond pulse train
AU - Shimizu, Toshihiko
AU - Okino, Tomoya
AU - Furusawa, Kentaro
AU - Hasegawa, Hirokazu
AU - Nabekawa, Yasuo
AU - Yamanouchi, Kaoru
AU - Midorikawa, Katsumi
PY - 2007/3/28
Y1 - 2007/3/28
N2 - We report the direct observation of phase locking between adjacent pulses in an attosecond pulse train (APT) via interferometric autocorrelation (IAC). In this measurement, the Coulomb explosion of N2 caused by two-photon absorption is utilized as correlated signals between two replicas of the APT that are the outcome of the spatial division of the APT in the interferometer. The analysis of IAC by the spatial division of the APT is consistent with the experimental trace of the IAC, and yields the duration of the pulse in the APT of 320 attoseconds, which corresponds to a 1.3 cycle period of the carrier frequency of the harmonic field.
AB - We report the direct observation of phase locking between adjacent pulses in an attosecond pulse train (APT) via interferometric autocorrelation (IAC). In this measurement, the Coulomb explosion of N2 caused by two-photon absorption is utilized as correlated signals between two replicas of the APT that are the outcome of the spatial division of the APT in the interferometer. The analysis of IAC by the spatial division of the APT is consistent with the experimental trace of the IAC, and yields the duration of the pulse in the APT of 320 attoseconds, which corresponds to a 1.3 cycle period of the carrier frequency of the harmonic field.
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U2 - 10.1103/PhysRevA.75.033817
DO - 10.1103/PhysRevA.75.033817
M3 - Article
AN - SCOPUS:33947720090
SN - 1050-2947
VL - 75
JO - Physical Review A - Atomic, Molecular, and Optical Physics
JF - Physical Review A - Atomic, Molecular, and Optical Physics
IS - 3
M1 - 033817
ER -