Optical design of a sub-1-μm focusing system for soft x-ray free electron lasers

Hiroto Motoyama; Shigeki Owada; Kensuke Tono; Takahisa Koyama; Haruhiko Ohashi; Makina Yabashi; Hidekazu Mimura

doi:10.1117/12.2271282

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6 September 2017 Optical design of a sub-1-μm focusing system for soft x-ray free electron lasers

Hiroto Motoyama, Shigeki Owada, Kensuke Tono, Takahisa Koyama, Haruhiko Ohashi, Makina Yabashi, Hidekazu Mimura

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Proceedings Volume 10386, Advances in X-Ray/EUV Optics and Components XII; 1038609 (2017) https://doi.org/10.1117/12.2271282
Event: SPIE Optical Engineering + Applications, 2017, San Diego, California, United States

Abstract

We present an optical design of a new focusing system for soft x-ray free electron lasers. The system is based on a two-staged focusing configuration that combines a Kirkpatrick-Baez focusing system with an ellipsoidal mirror so as to produce a sub-1-μm focal spot. A wave-optical simulation indicates that the power density at the focus exceeds 10¹⁸ W/cm², which enables us to access exotic interactions between soft x-rays and matters.

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Hiroto Motoyama, Shigeki Owada, Kensuke Tono, Takahisa Koyama, Haruhiko Ohashi, Makina Yabashi, and Hidekazu Mimura "Optical design of a sub-1-μm focusing system for soft x-ray free electron lasers", Proc. SPIE 10386, Advances in X-Ray/EUV Optics and Components XII, 1038609 (6 September 2017); https://doi.org/10.1117/12.2271282

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