Characterizing inner-shell with spectral phase interferometry for direct electric-field reconstruction

Hiroki Mashiko (), Tomohiko Yamaguchi, Katsuya Oguri, Akira Suda and Hideki Gotoh
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Hiroki Mashiko: NTT Basic Research Laboratories
Tomohiko Yamaguchi: NTT Basic Research Laboratories
Katsuya Oguri: NTT Basic Research Laboratories
Akira Suda: Tokyo University of Science
Hideki Gotoh: NTT Basic Research Laboratories

Nature Communications, 2014, vol. 5, issue 1, 1-6

Abstract: Abstract In many atomic, molecular and solid systems, Lorentzian and Fano profiles are commonly observed in a broad research fields throughout a variety of spectroscopies. As the profile structure is related to the phase of the time-dependent dipole moment, it plays an important role in the study of quantum properties. Here we determine the dipole phase in the inner-shell transition using spectral phase interferometry for direct electric-field reconstruction (SPIDER) with isolated attosecond pulses (IAPs). In addition, we propose a scheme for pulse generation and compression by manipulating the inner-shell transition. The electromagnetic radiation generated by the transition is temporally compressed to a few femtoseconds in the extreme ultraviolet (XUV) region. The proposed pulse-compression scheme may provide an alternative route to producing attosecond pulses of light.

Date: 2014
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DOI: 10.1038/ncomms6599

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