用于磁动力学研究的新型自由电子激光单脉冲沃拉斯顿偏振计。

IF 2.3 2区物理与天体物理 Q3 CHEMISTRY, PHYSICAL Structural Dynamics-Us Pub Date : 2021-06-18 eCollection Date: 2021-05-01 DOI:10.1063/4.0000104

Antonio Caretta, Simone Laterza, Valentina Bonanni, Rudi Sergo, Carlo Dri, Giuseppe Cautero, Fabio Galassi, Matteo Zamolo, Alberto Simoncig, Marco Zangrando, Alessandro Gessini, Simone Dal Zilio, Roberto Flammini, Paolo Moras, Alexander Demidovich, Miltcho Danailov, Fulvio Parmigiani, Marco Malvestuto

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引用次数: 2

摘要

在这里，我们报告了一种新型和紧凑的x射线偏振计的概念设计、硬件实现和第一个实验结果，该偏振计能够在极紫外光子能量范围内进行单脉冲线性偏振角检测。在外源自由电子激光源下，在M2,3 Ni边缘的Ni80Fe20 Permalloy薄膜上进行了时间分辨泵浦探针实验，对偏振仪进行了测试。与文献中报道的类似实验相比，我们的方法具有优势，并考虑到未来的实验。

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A novel free-electron laser single-pulse Wollaston polarimeter for magneto-dynamical studies.

Here, we report on the conceptual design, the hardware realization, and the first experimental results of a novel and compact x-ray polarimeter capable of a single-pulse linear polarization angle detection in the extreme ultraviolet photon energy range. The polarimeter is tested by performing time resolved pump-probe experiments on a Ni₈₀Fe₂₀ Permalloy film at the M_2,3 Ni edge at an externally seeded free-electron laser source. Comparison with similar experiments reported in the literature shows the advantages of our approach also in view of future experiments.

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来源期刊

Structural Dynamics-Us CHEMISTRY, PHYSICALPHYSICS, ATOMIC, MOLECU-PHYSICS, ATOMIC, MOLECULAR & CHEMICAL

CiteScore

5.50

自引率

3.60%

发文量

审稿时长

16 weeks

期刊介绍： Structural Dynamics focuses on the recent developments in experimental and theoretical methods and techniques that allow a visualization of the electronic and geometric structural changes in real time of chemical, biological, and condensed-matter systems. The community of scientists and engineers working on structural dynamics in such diverse systems often use similar instrumentation and methods. The journal welcomes articles dealing with fundamental problems of electronic and structural dynamics that are tackled by new methods, such as: Time-resolved X-ray and electron diffraction and scattering, Coherent diffractive imaging, Time-resolved X-ray spectroscopies (absorption, emission, resonant inelastic scattering, etc.), Time-resolved electron energy loss spectroscopy (EELS) and electron microscopy, Time-resolved photoelectron spectroscopies (UPS, XPS, ARPES, etc.), Multidimensional spectroscopies in the infrared, the visible and the ultraviolet, Nonlinear spectroscopies in the VUV, the soft and the hard X-ray domains, Theory and computational methods and algorithms for the analysis and description of structuraldynamics and their associated experimental signals. These new methods are enabled by new instrumentation, such as: X-ray free electron lasers, which provide flux, coherence, and time resolution, New sources of ultrashort electron pulses, New sources of ultrashort vacuum ultraviolet (VUV) to hard X-ray pulses, such as high-harmonic generation (HHG) sources or plasma-based sources, New sources of ultrashort infrared and terahertz (THz) radiation, New detectors for X-rays and electrons, New sample handling and delivery schemes, New computational capabilities.