Samuel Menzi
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View article: Extending Resonant Inelastic X-ray Scattering to Extreme Ultraviolet
Extending Resonant Inelastic X-ray Scattering to Extreme Ultraviolet Open
We present α-Al2O3 XAS, XES and RIXS measurements across the Al L2/L3 edges at about 79 eV excitation energy. In the emission spectra, we identify two fluorescence peaks, corresponding to electronic transitions into the 2p core hole from m…
View article: Ultrathin liquid sheets: water gets in shape for VUV absorption
Ultrathin liquid sheets: water gets in shape for VUV absorption Open
Nanometer-thin free-flowing liquid sheets open the door to absorption spectroscopy in the vacuum UV in transmission geometry on liquids in confined environments.
View article: Ultrafast Energy Transfer from Photoexcited Tryptophan to the Haem in Cytochrome c
Ultrafast Energy Transfer from Photoexcited Tryptophan to the Haem in Cytochrome c Open
We report femtosecond Fe K-edge absorption (XAS) and nonresonant X-ray emission (XES) spectra of ferric cytochrome C (Cyt c) upon excitation of the haem (>300 nm) or mixed excitation of the haem and tryptophan (<300 nm). The XAS and XES tr…
View article: Generation and simple characterization of flat, liquid jets
Generation and simple characterization of flat, liquid jets Open
We present an approach to determine the absolute thickness profile of flat liquid jets, which takes advantage of the information of thin film interference combined with light absorption, both captured in a single microscopic image. The fea…
View article: Spin cascade and doming in ferric hemes: Femtosecond X-ray absorption and X-ray emission studies
Spin cascade and doming in ferric hemes: Femtosecond X-ray absorption and X-ray emission studies Open
Significance The structure–function relationship in central to biology, while the structural dynamics are driven by electronic changes. Doming of ferrous heme proteins, which is central to the respiratory function of hemoglobin, ensues fro…
View article: Doming and spin cascade in Ferric Haems: Femtosecond X-ray Absorption and X-ray Emission Studies
Doming and spin cascade in Ferric Haems: Femtosecond X-ray Absorption and X-ray Emission Studies Open
The structure-function relationship is at the heart of biology and major protein deformations are correlated to specific functions. In the case of heme proteins, doming is associated with the respiratory function in hemoglobin and myoglobi…
View article: Taking a snapshot of the triplet excited state of an OLED organometallic luminophore using X-rays
Taking a snapshot of the triplet excited state of an OLED organometallic luminophore using X-rays Open
OLED technology beyond small or expensive devices requires light-emitters, luminophores, based on earth-abundant elements. Understanding and experimental verification of charge transfer in luminophores are needed for this development. An o…
View article: Heme Doming in Ferric Cytochrome c: Femtosecond X-ray Absorption and X-ray Emission Studies
Heme Doming in Ferric Cytochrome c: Femtosecond X-ray Absorption and X-ray Emission Studies Open
The photoinduced dynamics of ferric Cytochrome c was investigated by ultrafast non-resonant X-ray emission (XES) and X-Ray Absorption (XAS) spectroscopies, and a cascade through high spin states accompanied by heme doming are observed for …
View article: Accurate gas-phase structure of<i>para</i>-dioxane by fs Raman rotational coherence spectroscopy and<i>ab initio</i>calculations
Accurate gas-phase structure of<i>para</i>-dioxane by fs Raman rotational coherence spectroscopy and<i>ab initio</i>calculations Open
p-Dioxane is non-polar, hence its rotational constants cannot be determined by microwave rotational coherence spectroscopy (RCS). We perform high-resolution gas-phase rotational spectroscopy of para-dioxane-h8 and -d8 using femtosecond tim…