Spatially resolved spectral phase interferometry with an isolated attosecond pulse

We demonstrate spatially resolved supercontinuum spectral phase interferometry with an isolated attosecond pulse (IAP). The measured spatial-spectral interferogram over the broadband region indicates a high degree of IAP coherence in both spatial and spectral domains. In addition, the spectral-delay...

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Published inOptics express Vol. 28; no. 14; pp. 21025 - 21034
Main Authors Mashiko, Hiroki, Chen, Ming-Chang, Asaga, Koji, Oshima, Akihiro, Katayama, Ikufumi, Takeda, Jun, Nishikawa, Tadashi, Oguri, Katsuya
Format Journal Article
LanguageEnglish
Published 06.07.2020
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Summary:We demonstrate spatially resolved supercontinuum spectral phase interferometry with an isolated attosecond pulse (IAP). The measured spatial-spectral interferogram over the broadband region indicates a high degree of IAP coherence in both spatial and spectral domains. In addition, the spectral-delay interferogram shows periodic temporal oscillations over the full IAP continuous spectrum, which indicates high temporal coherence. The supercontinuum spectral phase interferometry with broadband IAP will contribute to exploring spatiotemporal dispersive electronic dynamics through phase-based spectroscopy in the future.
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ISSN:1094-4087
1094-4087
DOI:10.1364/OE.393922