ArticleStructural dynamics (Melville, N.Y.)2021
Highly efficient soft x-ray spectrometer for transient absorption spectroscopy with broadband table-top high harmonic sources.
Article in Structural dynamics (Melville, N.Y.), 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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2 citing papers in PubMed.
- Ultrafast Mapping of Electronic and Nuclear Structure in the Photo Dissociation of Nitrogen Dioxide.The journal of physical chemistry letters · 2024Article
- Toward ultrafast soft x-ray spectroscopy of organic photovoltaic devices.Structural dynamics (Melville, N.Y.) · 2024Article
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Authors and funding
14 authors.
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Abstract
We present a novel soft x-ray spectrometer for ultrafast absorption spectroscopy utilizing table-top femtosecond high-order harmonic sources. Where most commercially available spectrometers rely on spherical variable line space gratings with a typical efficiency on the order of 3% in the first diffractive order, this spectrometer, based on a Hettrick-Underwood design, includes a reflective zone plate as a dispersive element. An improved efficiency of 12% at the N K-edge is achieved, accompanied by a resolving power of 890. The high performance of the soft x-ray spectrometer is further demonstrated by comparing nitrogen K-edge absorption spectra from calcium nitrate in aqueous solution obtained with our high-order harmonic source to previous measurements performed at the electron storage ring facility BESSY II.
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