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arXiv · 1502.05124

Dispersion-free monochromatization method for selecting a single-order harmonic beam

Eiji J. Takahashi·Masatoshi Hatayama·Satoshi Ichimaru·Katsumi Midorikawa
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Abstract

We propose a method to monochromatize multiple orders of high harmonics by using a proper designed multilayer mirror. Multilayer mirrors designed by our concept realize the perfect extraction of a single-order harmonic from multiple-order harmonic beam, and exhibit broadband tenability and high reflectivity in the soft-x-ray region. Furthermore, the proposed monochromatization method can preserve the femtosecond to attosecond pulse duration for the reflected beam. This device is very useful for ultrafast soft x-ray experiments that require high-order harmonic beams, such as femtosecond/attosecond, time-resolved, pump-probe spectroscopy.

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Eiji J. Takahashi, Masatoshi Hatayama, Satoshi Ichimaru, Katsumi Midorikawa. 2015-02-18. Dispersion-free monochromatization method for selecting a single-order harmonic beam. https://arxiv.org/abs/1502.05124

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