Results 21 to 30 of about 299,025 (256)
Ultrafast X-ray Spectroscopy of Haem Proteins
CHIMIA, 2022 In this article we revisit our recent picosecond and femtosecond X-ray absorption spectroscopy (XAS) and X-ray emission spectroscopy (XES) experiments, probing the ultrafast electronic and geometric evolution of photoexcited haem proteins, namely ...
Camila Bacellar, Majed Chergui
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InGaAs x-ray photodiode for spectroscopy
Materials Research Express, 2020 A prototype In _0.53 Ga _0.47 As p ^+ -i-n ^+ x-ray photodiode, fabricated from material grown by metalorganic vapour phase epitaxy, was investigated as a novel detector of x-rays.
M D C Whitaker +3 more
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X-ray absorption spectroscopy and X-ray diffraction data for molybdenum minerals and compounds
Data in Brief, 2022 We report Mo K- and LIII-edge X-ray absorption spectroscopy (XAS) and X-ray diffraction (XRD) data collected for 15 molybdenum minerals and compounds sourced from museum collections, mineral dealers, and chemical suppliers. The samples were finely ground
Valerie A. Schoepfer +1 more
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Journal of Synchrotron Radiation, 2022 Understanding the ultrafast dynamics of molecules is of fundamental importance. Time-resolved X-ray absorption spectroscopy (TR-XAS) is a powerful spectroscopic technique for unveiling the time-dependent structural and electronic information of molecules
Yujin Kim +8 more
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Journal of Synchrotron Radiation, 2023 A von Hámos spectrometer has been implemented in the vacuum interaction chamber 1 of the High Energy Density instrument at the European X-ray Free-Electron Laser facility.
Johannes M. Kaa +23 more
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Three-dimensional electronic spectroscopy of excitons in asymmetric double quantum wells
New Journal of Physics, 2013 We utilize a three-dimensional (3D) visible spectroscopy to reveal and explore coherent coupling between excitons localized to GaAs quantum wells separated by barriers 4 and 6 nm wide. The coupled excitons were energetically separated by 43 meV, close to
C R Hall +3 more
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The crucial contribution of X-ray fluorescence spectroscopy in medicine
Comptes Rendus. Chimie, 2021 This contribution tries to indicate to the clinician what kind of information can be investigated through X-ray fluorescence, what kind of information can be extracted from this spectroscopy and finally how it competes with other tools described in ...
Bazin, Dominique +8 more
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Resonant X-ray emission spectroscopy using self-seeded hard X-ray pulses at PAL-XFEL
Journal of Synchrotron Radiation, 2023 Self-seeded hard X-ray pulses at PAL-XFEL were used to commission a resonant X-ray emission spectroscopy experiment with a von Hamos spectrometer. The self-seeded beam, generated through forward Bragg diffraction of the [202] peak in a 100 µm-thick ...
Tae-Kyu Choi +10 more
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Interferometry Based EUV Spectrometer
IEEE Photonics Journal, 2017 A compact and wavelength-calibration-free interferometric scheme was numerically and experimentally investigated using an extreme ultraviolet (EUV) source generated by a laser-produced plasma. A Michelson-type interferometer with a common path, formed by
Yen-Yin Li +8 more
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From Femtoseconds to Hours—Measuring Dynamics over 18 Orders of Magnitude with Coherent X-rays
Applied Sciences, 2021 X-ray photon correlation spectroscopy (XPCS) enables the study of sample dynamics between micrometer and atomic length scales. As a coherent scattering technique, it benefits from the increased brilliance of the next-generation synchrotron radiation and ...
Felix Lehmkühler +2 more
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