||木村 隆志 准教授
||Design of Wolter Mirror for Spectro-microscopic Imaging with Single-shot Soft X-rays
||X-ray microscopy is suitable for visualizing the internal structure of samples due to its high penetrating power and spatial resolution. Moreover, X-ray spectro-microscopy can analyze chemical states and magnetic structures, thus used in a wide range of fields, mainly in materials science. With higher temporal resolution, it has potential to become an essential technology for in-situ/operand observation of unknown phenomena such as reactions in living organisms and fuel cells.
In this study, we develop a spectro-microscopic system with a single-shot pulse of soft X-rays using a Wolter mirror and multi-aperture grating. This optical system allows simultaneous imaging of multicolor soft X-rays, with photon energies corresponding to absorption edges of each element included in samples.
We aim to construct this system at SPring-8 BL07LSU, the soft X-ray beamline with multiple undulators. For this purpose, we have designed a Wolter mirror and multi-aperture grating by optical simulation and conducted the proof-of-principle experiment using visible light.
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T. Kimura et al., Opt. Express 30, 26220-26228 (2022).