Development of fluorescence-yield wavelength-dispersive x-ray absorption spectroscopy in the soft x-ray region for time-resolved experiments

2020 ◽  
Vol 91 (9) ◽  
pp. 093104
Author(s):  
K. Amemiya ◽  
K. Sakata ◽  
M. Suzuki-Sakamaki
Keyword(s):  
Absorption Spectroscopy ◽  
Fluorescence Yield ◽  
Time Resolved ◽  
X Ray ◽  
X Ray Absorption

scholarly journals A setup for ultrafast time-resolved x-ray absorption spectroscopy

2004 ◽  
Vol 75 (1) ◽  
pp. 24-30 ◽  
Author(s):  
Melanie Saes ◽  
Frank van Mourik ◽  
Wojciech Gawelda ◽  
Maik Kaiser ◽  
Majed Chergui ◽  
...  
Keyword(s):  
Absorption Spectroscopy ◽  
Time Resolved ◽  
X Ray ◽  
X Ray Absorption

scholarly journals Development of an experimental apparatus to observe ultrafast phenomena by tender X-ray absorption spectroscopy at PAL-XFEL

2022 ◽  
Vol 29 (1) ◽  
Author(s):  
Yujin Kim ◽  
Daewoong Nam ◽  
Rory Ma ◽  
Sangsoo Kim ◽  
Myung-jin Kim ◽  
...  
Keyword(s):  
Absorption Spectroscopy ◽  
Spectroscopic Technique ◽  
Ultrafast Dynamics ◽  
Electronic Information ◽  
Time Resolved ◽  
X Ray ◽  
Experimental Apparatus ◽  
Technical Achievement ◽  
X Ray Absorption ◽  
Pal Xfel

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 that has been widely applied in various fields. Herein, the design and technical achievement of a newly developed experimental apparatus for TR-XAS measurements in the tender X-ray range with X-ray free-electron lasers (XFELs) at the Pohang Accelerator Laboratory XFEL (PAL-XFEL) are described. Femtosecond TR-XAS measurements were conducted at the Ru L 3-edge of well known photosensitizer tris(bipyridine)ruthenium(II) chloride ([Ru(bpy)3]2+) in water. The results indicate ultrafast photoinduced electron transfer from the Ru center to the ligand, which demonstrates that the newly designed setup is applicable for monitoring ultrafast reactions in the femtosecond domain.

scholarly journals Time-resolved X-ray absorption spectroscopy of infrared-laser-induced temperature jumps in liquid water

2009 ◽  
Vol 96 (1) ◽  
pp. 11-18 ◽  
Author(s):  
G. Gavrila ◽  
K. Godehusen ◽  
C. Weniger ◽  
E. T. J. Nibbering ◽  
T. Elsaesser ◽  
...  
Keyword(s):  
Absorption Spectroscopy ◽  
Liquid Water ◽  
Infrared Laser ◽  
Time Resolved ◽  
X Ray ◽  
Temperature Jumps ◽  
X Ray Absorption

scholarly journals Decomposing electronic and lattice contributions in optical pump – X-ray probe transient inner-shell absorption spectroscopy of CuO

2019 ◽  
Vol 216 ◽  
pp. 414-433 ◽  
Author(s):  
Johannes Mahl ◽  
Stefan Neppl ◽  
Friedrich Roth ◽  
Mario Borgwardt ◽  
Catherine Saladrigas ◽  
...  
Keyword(s):  
Heat Transport ◽  
Absorption Spectroscopy ◽  
Energy Deposition ◽  
Optical Pump ◽  
Time Resolved ◽  
X Ray ◽  
X Ray Absorption

Laser-induced energy deposition and heat transport in CuO is studied by picosecond time-resolved X-ray absorption spectroscopy.

scholarly journals Tandem X-ray absorption spectroscopy and scattering for in situ time-resolved monitoring of gold nanoparticle mechanosynthesis

2020 ◽  
Vol 56 (71) ◽  
pp. 10329-10332 ◽  
Author(s):  
Paulo F. M. de Oliveira ◽  
Adam A. L. Michalchuk ◽  
Ana Guilherme Buzanich ◽  
Ralf Bienert ◽  
Roberto M. Torresi ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Gold Nanoparticle ◽  
Absorption Spectroscopy ◽  
Mechanochemical Synthesis ◽  
Time Resolved ◽  
X Ray ◽  
X Ray Absorption

A new tandem approach combines XRD and XANES for time-resolved in situ monitoring of the mechanochemical synthesis of gold nanoparticles.

scholarly journals Tracing the 267 nm-Induced Radical Formation in Dimethyl Disulfide Using Time-Resolved X-ray Absorption Spectroscopy

2019 ◽  
Vol 10 (6) ◽  
pp. 1382-1387 ◽  
Author(s):  
Kirsten Schnorr ◽  
Aditi Bhattacherjee ◽  
Katherine J. Oosterbaan ◽  
Mickaël G. Delcey ◽  
Zheyue Yang ◽  
...  
Keyword(s):  
Absorption Spectroscopy ◽  
Dimethyl Disulfide ◽  
Radical Formation ◽  
Time Resolved ◽  
X Ray ◽  
X Ray Absorption

scholarly journals A zone-plate-based two-color spectrometer for indirect X-ray absorption spectroscopy

2019 ◽  
Vol 26 (4) ◽  
pp. 1266-1271 ◽  
Author(s):  
Florian Döring ◽  
Marcel Risch ◽  
Benedikt Rösner ◽  
Martin Beye ◽  
Philipp Busse ◽  
...  
Keyword(s):  
Absorption Spectroscopy ◽  
Fresnel Zone ◽  
Decay Channel ◽  
Chemical Properties ◽  
Fluorescence Yield ◽  
Complex Materials ◽  
X Ray ◽  
Total Fluorescence ◽  
X Ray Absorption

X-ray absorption spectroscopy (XAS) is a powerful element-specific technique that allows the study of structural and chemical properties of matter. Often an indirect method is used to access the X-ray absorption (XA). This work demonstrates a new XAS implementation that is based on off-axis transmission Fresnel zone plates to obtain the XA spectrum of La0.6Sr0.4MnO3 by analysis of three emission lines simultaneously at the detector, namely the O 2p–1s, Mn 3s–2p and Mn 3d–2p transitions. This scheme allows the simultaneous measurement of an integrated total fluorescence yield and the partial fluorescence yields (PFY) of the Mn 3s–2p and Mn 3d–2p transitions when scanning the Mn L-edge. In addition to this, the reduction in O fluorescence provides another measure for absorption often referred to as the inverse partial fluorescence yield (IPFY). Among these different methods to measure XA, the Mn 3s PFY and IPFY deviate the least from the true XA spectra due to the negligible influence of selection rules on the decay channel. Other advantages of this new scheme are the potential to strongly increase the efficiency and throughput compared with similar measurements using conventional gratings and to increase the signal-to-noise of the XA spectra as compared with a photodiode. The ability to record undistorted bulk XA spectra at high flux is crucial for future in situ spectroscopy experiments on complex materials.

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