Hard X-ray nanofocusing using adaptive focusing optics based on piezoelectric deformable mirrors.

Abstract

An adaptive Kirkpatrick-Baez mirror focusing optics based on piezoelectric deformable mirrors was constructed at SPring-8 and its focusing performance characteristics were demonstrated. By adjusting the voltages applied to the deformable mirrors, the shape errors (compared to a target elliptical shape) were finely corrected on the basis of the mirror shape determined using the pencil-beam method, which is a type of at-wavelength figure metrology in the X-ray region. The mirror shapes were controlled with a peak-to-valley height accuracy of 2.5 nm. A focused beam with an intensity profile having a full width at half maximum of 110 × 65 nm (V × H) was achieved at an X-ray energy of 10 keV.

DOI: 10.1063/1.4916617

Cite this paper

@article{Goto2015HardXN, title={Hard X-ray nanofocusing using adaptive focusing optics based on piezoelectric deformable mirrors.}, author={Takumi Goto and Hiroki Nakamori and Takashi Kimura and Yasuhisa Sano and Yoshiki Kohmura and K. Tamasaku and Makina Yabashi and Tetsuya Ishikawa and Kazuto Yamauchi and Satoshi Matsuyama}, journal={The Review of scientific instruments}, year={2015}, volume={86 4}, pages={043102} }