Feasibility study of high-resolution coherent diffraction microscopy using synchrotron x rays focused by Kirkpatrick-Baez mirrors

Yukio Takahashi; Yoshinori Nishino; Hidekazu Mimura; Ryosuke Tsutsumi; Hideto Kubo; Tetsuya Ishikawa; Kazuto Yamauchi

doi:10.1063/1.3108997

Feasibility study of high-resolution coherent diffraction microscopy using synchrotron x rays focused by Kirkpatrick-Baez mirrors

Yukio Takahashi, Yoshinori Nishino, Hidekazu Mimura, Ryosuke Tsutsumi, Hideto Kubo, Tetsuya Ishikawa, Kazuto Yamauchi

Research output: Contribution to journal › Article › peer-review

13 Citations (Scopus)

Abstract

High-flux coherent x rays are necessary for the improvement of the spatial resolution in coherent x-ray diffraction microscopy (CXDM). In this study, high-resolution CXDM using Kirkpatrick-Baez (KB) mirrors is proposed, and the mirrors are designed for experiments of the transmission scheme at SPring-8. Both the photon density and spatial coherence of synchrotron x rays focused by the KB mirrors are investigated by wave optical simulation. The KB mirrors can produce nearly diffraction-limited two-dimensional focusing x rays of ∼1 μm in size at 8 keV. When the sample size is less than ∼1 μm, the sample can be illuminated with full coherent x rays by adjusting the cross-slit size set between the source and the mirrors. From the estimated photon density at the sample position, the feasibility of CXDM with a sub- 1-nm spatial resolution is suggested. The present ultraprecise figuring process enables us to fabricate mirrors for carrying out high-resolution CXDM experiments.

Original language	English
Article number	083106
Journal	Journal of Applied Physics
Volume	105
Issue number	8
DOIs	https://doi.org/10.1063/1.3108997
Publication status	Published - 2009
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy(all)

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10.1063/1.3108997

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title = "Feasibility study of high-resolution coherent diffraction microscopy using synchrotron x rays focused by Kirkpatrick-Baez mirrors",

abstract = "High-flux coherent x rays are necessary for the improvement of the spatial resolution in coherent x-ray diffraction microscopy (CXDM). In this study, high-resolution CXDM using Kirkpatrick-Baez (KB) mirrors is proposed, and the mirrors are designed for experiments of the transmission scheme at SPring-8. Both the photon density and spatial coherence of synchrotron x rays focused by the KB mirrors are investigated by wave optical simulation. The KB mirrors can produce nearly diffraction-limited two-dimensional focusing x rays of ∼1 μm in size at 8 keV. When the sample size is less than ∼1 μm, the sample can be illuminated with full coherent x rays by adjusting the cross-slit size set between the source and the mirrors. From the estimated photon density at the sample position, the feasibility of CXDM with a sub- 1-nm spatial resolution is suggested. The present ultraprecise figuring process enables us to fabricate mirrors for carrying out high-resolution CXDM experiments.",

author = "Yukio Takahashi and Yoshinori Nishino and Hidekazu Mimura and Ryosuke Tsutsumi and Hideto Kubo and Tetsuya Ishikawa and Kazuto Yamauchi",

note = "Funding Information: This research has been carried out at the Frontier Research Base for Global Young Researchers, Osaka University, on the Program of Promotion of Environmental Improvement to Enhance Young Researcher{\textquoteright}s Independence, the Special Coordination Funds for Promoting Science and Technology, from the Ministry of Education, Culture, Sports, Science and Technology (MEXT). This work was also partly supported by funds from a Grant-in-Aid for the “Promotion of X-ray Free Electron Laser Research,” Specially Promoted Research (Grant No. 18002009), the Global COE Program “Center of Excellence for Atomically Controlled Fabrication Technology” from MEXT, Konica Minolta Imaging Science Foundation, and Shimadzu Science Foundation. The authors would like to acknowledge S. Matsuyama, S, Handa, and T. Kimura for valuable discussions.",

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AU - Takahashi, Yukio

AU - Nishino, Yoshinori

AU - Mimura, Hidekazu

AU - Tsutsumi, Ryosuke

AU - Kubo, Hideto

AU - Ishikawa, Tetsuya

AU - Yamauchi, Kazuto

N1 - Funding Information: This research has been carried out at the Frontier Research Base for Global Young Researchers, Osaka University, on the Program of Promotion of Environmental Improvement to Enhance Young Researcher’s Independence, the Special Coordination Funds for Promoting Science and Technology, from the Ministry of Education, Culture, Sports, Science and Technology (MEXT). This work was also partly supported by funds from a Grant-in-Aid for the “Promotion of X-ray Free Electron Laser Research,” Specially Promoted Research (Grant No. 18002009), the Global COE Program “Center of Excellence for Atomically Controlled Fabrication Technology” from MEXT, Konica Minolta Imaging Science Foundation, and Shimadzu Science Foundation. The authors would like to acknowledge S. Matsuyama, S, Handa, and T. Kimura for valuable discussions.

PY - 2009

Y1 - 2009

N2 - High-flux coherent x rays are necessary for the improvement of the spatial resolution in coherent x-ray diffraction microscopy (CXDM). In this study, high-resolution CXDM using Kirkpatrick-Baez (KB) mirrors is proposed, and the mirrors are designed for experiments of the transmission scheme at SPring-8. Both the photon density and spatial coherence of synchrotron x rays focused by the KB mirrors are investigated by wave optical simulation. The KB mirrors can produce nearly diffraction-limited two-dimensional focusing x rays of ∼1 μm in size at 8 keV. When the sample size is less than ∼1 μm, the sample can be illuminated with full coherent x rays by adjusting the cross-slit size set between the source and the mirrors. From the estimated photon density at the sample position, the feasibility of CXDM with a sub- 1-nm spatial resolution is suggested. The present ultraprecise figuring process enables us to fabricate mirrors for carrying out high-resolution CXDM experiments.

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Feasibility study of high-resolution coherent diffraction microscopy using synchrotron x rays focused by Kirkpatrick-Baez mirrors

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