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Fabrication and Performance Test of Fresnel Zone Plate with 35 nm Outermost Zone Width in Hard X-Ray Region

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Author(s): Yoshio Suzuki | Akihisa Takeuchi | Hisataka Takenaka | Ikuo Okada

Journal: X-Ray Optics and Instrumentation
ISSN 1687-7632

Volume: 2010;
Date: 2010;
Original page

ABSTRACT
A Fresnel zone plate (FZP) with 35 nm outermost zone width has been fabricated and tested in the hard X-ray region. The FZP was made by electron beam lithography and reactive ion etching technique. The performance test of the FZP was carried out by measuring the focused beam profile for coherent hard X-ray beam at the beamline 20XU of SPring-8. The full width at half maximum of the focused beam profile measured by knife-edge scan method is 34.9±2.7 nm, that agrees well with the theoretical value of diffraction-limited resolution. Applications to scanning microscopy were also carried out.
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