An optical design of twin Wolter mirrors for focusing and imaging experiments with soft X-ray free electron lasers

S. Egawa; G. Yamaguchi; H. Motoyama; S. Owada; Y. Kubota; K. Tono; H. Ohashi; M. Yabashi; H. Mimura

doi:10.1117/12.2529039

9 September 2019 An optical design of twin Wolter mirrors for focusing and imaging experiments with soft X-ray free electron lasers

S. Egawa, G. Yamaguchi, H. Motoyama, S. Owada, Y. Kubota, K. Tono, H. Ohashi, M. Yabashi, H. Mimura

Author Affiliations +

Proceedings Volume 11108, Advances in X-Ray/EUV Optics and Components XIV; 1110804 (2019) https://doi.org/10.1117/12.2529039
Event: SPIE Optical Engineering + Applications, 2019, San Diego, California, United States

Abstract

This paper presents the designs and simulations of twin Wolter mirrors for focusing and imaging experiments with soft Xray free electron lasers. Wave-optical simulations at a photon energy of 100 eV indicate that the designed focusing Wolter mirror focuses soft X-ray beams to a 300 nm × 200 nm spot with an acceptable rotational error of 1.7 mrad × 1.4 mrad and that the objective Wolter mirror, which receives the beam that passes through the focusing Wolter mirror and a sample, forms bright-field images with a spatial resolution of 140 nm × 140 nm. The focusing Wolter mirror enables long-term experiments with high stability, and the objective Wolter mirror is applicable to imaging-before-destruction.

Citation Download Citation

S. Egawa, G. Yamaguchi, H. Motoyama, S. Owada, Y. Kubota, K. Tono, H. Ohashi, M. Yabashi, and H. Mimura "An optical design of twin Wolter mirrors for focusing and imaging experiments with soft X-ray free electron lasers", Proc. SPIE 11108, Advances in X-Ray/EUV Optics and Components XIV, 1110804 (9 September 2019); https://doi.org/10.1117/12.2529039

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