Optics for coherent X-ray applications.
Makina Yabashi,Kensuke Tono,Hidekazu Mimura,Satoshi Matsuyama,Kazuto Yamauchi,Takashi Tanaka,Hitoshi Tanaka,Kenji Tamasaku,Haruhiko Ohashi,Shunji Goto,Tetsuya Ishikawa +10 more
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TLDR
Developments of optics for coherent X-ray applications and their role in diffraction-limited storage rings are described.Abstract:
Developments of X-ray optics for full utilization of diffraction-limited storage rings (DLSRs) are presented. The expected performance of DLSRs is introduced using the design parameters of SPring-8 II. To develop optical elements applicable to manipulation of coherent X-rays, advanced technologies on precise processing and metrology were invented. With propagation-based coherent X-rays at the 1 km beamline of SPring-8, a beryllium window fabricated with the physical-vapour-deposition method was found to have ideal speckle-free properties. The elastic emission machining method was utilized for developing reflective mirrors without distortion of the wavefronts. The method was further applied to production of diffraction-limited focusing mirrors generating the smallest spot size in the sub-10 nm regime. To enable production of ultra-intense nanobeams at DLSRs, a low-vibration cooling system for a high-heat-load monochromator and advanced diagnostic systems to characterize X-ray beam properties precisely were developed. Finally, new experimental schemes for combinative nano-analysis and spectroscopy realised with novel X-ray optics are discussed.read more
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Compact reflective imaging optics in hard X-ray region based on concave and convex mirrors.
Jumpei Yamada,Satoshi Matsuyama,Yasuhisa Sano,Yoshiki Kohmura,Makina Yabashi,Tetsuya Ishikawa,Kazuto Yamauchi +6 more
TL;DR: The combination of a hyperbolic convex and elliptical concave mirrors works as a compact reflective X-ray imaging system with a short optical focal length and large magnification factor that is capable of providing a resolution of ~40 nm.
Journal ArticleDOI
Direct 2D spatial-coherence determination using the Fourier-analysis method: multi-parameter characterization of the P04 beamline at PETRA III.
Kai Bagschik,Jochen Wagner,Ralph Buß,Matthias Riepp,Andre Philippi-Kobs,Leonard Müller,Jens Buck,Florian Trinter,Frank Scholz,Jörn Seltmann,Moritz Hoesch,Jens Viefhaus,Gerhard Grübel,Hans Peter Oepen,Robert Frömter +14 more
TL;DR: A systematic 2D spatial-coherence analysis of the soft-X-ray beamline P04 at PETRA III for various beamline configurations is presented and the charge scattering of a disordered nanodot sample is exploited allowing the use of arbitrary X-ray photon energies with this method.
Journal ArticleDOI
An X-ray harmonic separator for next-generation synchrotron X-ray sources and X-ray free-electron lasers.
Ichiro Inoue,Taito Osaka,Kenji Tamasaku,Haruhiko Ohashi,Hiroshi Yamazaki,Shunji Goto,Makina Yabashi +6 more
TL;DR: A new optical technique used to extract a specific harmonic of undulator radiation is proposed and the concept was experimentally confirmed using X-ray pulses from SACLA.
Journal ArticleDOI
Atmospheric coherent X-ray diffraction imaging for in situ structural analysis at SPring-8 Hyogo beamline BL24XU.
TL;DR: An atmospheric CXDI system developed at SPring-8 Hyogo beamline BL24XU for in situ structural analysis and designed for experiments at a photon energy of 8 keV is described, which enables experiments to be conducted under ambient atmospheric conditions, which is advantageous for the visualization of samples in native states.
Journal ArticleDOI
Edge-subtraction X-ray ptychographic imaging with pink beam synchrotron radiation and a single photon-counting detector.
TL;DR: A new method of performing X-ray edge-subtraction ptychographic imaging by combining multiple harmonics from an undulator synchtrotron source and an energy discriminating photon counting detector is presented, applied to obtain Au L-edge subtraction imaging of a Au-Ni grid test sample.
References
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R. Hanbury Brown,R. Q. Twiss +1 more
TL;DR: Hanbury-Brown and Twiss as mentioned in this paper showed that photon detections in the two daughter beams were correlated: the photons were bunching together, which corresponded to a correlation in the intensity of light in two beams, which could be used to infer the angular size of distant stars.
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Journal Article
Correlation between photons in two coherent beams of light
R. H. Brown,R. Q. Twiss +1 more
Journal ArticleDOI
A compact X-ray free-electron laser emitting in the sub-ångström region
Tetsuya Ishikawa,Hideki Aoyagi,Takao Asaka,Yoshihiro Asano,Noriyoshi Azumi,T. Bizen,H. Ego,Kenji Fukami,Toru Fukui,Yukito Furukawa,Shunji Goto,Hirofumi Hanaki,Toru Hara,Teruaki Hasegawa,Takaki Hatsui,Atsushi Higashiya,T. Hirono,Naoyasu Hosoda,Miho Ishii,Takahiro Inagaki,Yuichi Inubushi,Toshiro Itoga,Yasumasa Joti,Masahiro Kago,Takashi Kameshima,Hiroaki Kimura,Yoichi Kirihara,Akio Kiyomichi,T. Kobayashi,Chikara Kondo,Togo Kudo,Hirokazu Maesaka,Xavier Maréchal,Takemasa Masuda,Shinichi Matsubara,Takahiro Matsumoto,Tomohiro Matsushita,Sakuo Matsui,Mitsuru Nagasono,Nobuteru Nariyama,Haruhiko Ohashi,Toru Ohata,Takashi Ohshima,Shun Ono,Yuji Otake,Choji Saji,Tatsuyuki Sakurai,Takahiro Sato,Kei Sawada,T. Seike,Katsutoshi Shirasawa,Takashi Sugimoto,Shinsuke Suzuki,Sunao Takahashi,Hideki Takebe,Kunikazu Takeshita,Kenji Tamasaku,Hitoshi Tanaka,Ryotaro Tanaka,Takashi Tanaka,Tadashi Togashi,Kazuaki Togawa,Atsushi Tokuhisa,Hiromitsu Tomizawa,Kensuke Tono,Shukui Wu,Makina Yabashi,Mitsuhiro Yamaga,Akihiro Yamashita,Kenichi Yanagida,Chao Zhang,Tsumoru Shintake,Hideo Kitamura,Noritaka Kumagai +73 more
TL;DR: In this paper, the SPring-8 Angstrom Compact Free-Electron Laser (CFEL) was used for sub-angstrom fundamental-wavelength lasing at the Tokyo National Museum.
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