Wave-optical and ray-tracing analysis to establish a compact two-dimensional focusing unit using K-B mirror arrangement

Satoshi Matsuyama; Hidekazu Mimura; Kazuya Yamamura; Hirokatsu Yumoto; Yasuhisa Sano; Katsuyoshi Endo; Yuzo Mori; Makina Yabashi; Kenji Tamasaku; Yoshinori Nishino; Tetsuya Ishikawa; Kazuto Yamauchi

doi:10.1117/12.567515

18 October 2004 Wave-optical and ray-tracing analysis to establish a compact two-dimensional focusing unit using K-B mirror arrangement

Satoshi Matsuyama, Hidekazu Mimura, Kazuya Yamamura, Hirokatsu Yumoto, Yasuhisa Sano, Katsuyoshi Endo, Yuzo Mori, Makina Yabashi, Kenji Tamasaku, Yoshinori Nishino, Tetsuya Ishikawa, Kazuto Yamauchi

Author Affiliations +

Proceedings Volume 5533, Advances in Mirror Technology for X-Ray, EUV Lithography, Laser, and Other Applications II; (2004) https://doi.org/10.1117/12.567515
Event: Optical Science and Technology, the SPIE 49th Annual Meeting, 2004, Denver, Colorado, United States

Abstract

The spatial resolution of the scanning X-ray microscopy apparently depends on the beam size of the focused X-ray. Recently, highly accurate elliptical mirrors were reported to be fabricated, and nearly diffraction-limited line focusing was achieved. In this study, to realize diffraction-limited and 2-dimentional focusing with such highly accurate mirrors, accuracies to be realized in mirror alignings, for example, adjusting the glancing angle and the in-plane rotation, were estimated by employing two types of simulators. They are appropriately based on geometrical or wave-optical theories. They are alternatively employed according to the degree of accuracy required in the mirror alignment. A focusing unit with the adjusting mechanism fulfilling the required alignment accuracies was constructed, and the relationships between the alignment errors and focused beam profiles were quantitatively examined at the 1km-long beamline (BL29XUL) of SPring-8. Obtained results were in good agreement with the calculated results. Additionally, the alignment accuracy to be realized in the K-B unit equipping mirrors of larger NA (numerical aperture) was calculated to realize sufficient performances in focusing.

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Satoshi Matsuyama, Hidekazu Mimura, Kazuya Yamamura, Hirokatsu Yumoto, Yasuhisa Sano, Katsuyoshi Endo, Yuzo Mori, Makina Yabashi, Kenji Tamasaku, Yoshinori Nishino, Tetsuya Ishikawa, and Kazuto Yamauchi "Wave-optical and ray-tracing analysis to establish a compact two-dimensional focusing unit using K-B mirror arrangement", Proc. SPIE 5533, Advances in Mirror Technology for X-Ray, EUV Lithography, Laser, and Other Applications II, (18 October 2004); https://doi.org/10.1117/12.567515

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