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APS » Journals » Phys. Rev. Lett. » Volume 102 » Issue 21
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Phys. Rev. Lett. 102, 213904 (2009) [4 pages]

Interferometry of Attosecond Pulse Trains in the Extreme Ultraviolet Wavelength Region

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Yasuo Nabekawa*, Toshihiko Shimizu†, Yusuke Furukawa, Eiji J. Takahashi, and Katsumi Midorikawa
Extreme Photonics Research Group, Advanced Science Institute, RIKEN, Wako-shi, Hirosawa 2-1, Saitama 351-0198, Japan

Received 8 December 2008; published 29 May 2009

The temporal coherence of an attosecond optical field in the extreme ultraviolet wavelength region can be defined in terms of the extent of interference in time domain. We successfully measured this phenomenon both with and without spectral decomposition. We also report the results of using this approach to directly observe both symmetry and symmetry breaking of interference fringes in an attosecond pulse train.

© 2009 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.102.213904
DOI:
10.1103/PhysRevLett.102.213904
PACS:
42.65.Ky, 42.25.Hz, 42.25.Kb

*nabekawa@riken.jp

†Present address: Institute of Laser Engineering, Osaka University, 2-6 Yamadaoka, Suita, Osaka 565-0871, Japan.

 
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