Design and demonstration of phase gratings for 2D single grating interferometer | Zendy

Naoki Morimoto | Zendy; Sho Fujino | Zendy; Yasuhiro Ito | Zendy; Amane Yamazaki | Zendy; Issei Sano | Zendy; Takuji Hosoi | Zendy; Heiji Watanabe | Zendy; Takayoshi Shimura | Zendy

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Design and demonstration of phase gratings for 2D single grating interferometer

Author(s) -

Naoki Morimoto,

Sho Fujino,

Yasuhiro Ito,

Amane Yamazaki,

Issei Sano,

Takuji Hosoi,

Heiji Watanabe,

Takayoshi Shimura

Publication year - 2015

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.23.029399

Subject(s) - optics , grating , interferometry , phase (matter) , differential phase , diffraction grating , materials science , visibility , physics , quantum mechanics

In this study, we examined five types of phase gratings in a two-dimensional (2D) single grating interferometer with multidot metal targets embedded in a diamond substrate. For a phase grating consisting of two stacked 1D π/2-phase gratings and a checkerboard π-phase grating the multidot-pattern self-images with high visibility (40%) were obtained as expected from simulations. In addition to an absorption image, differential phase contrast and dark-field images in both x and y directions were derived from a single image. We also examined face-centered-square multidot metal targets, which doubled the x-ray intensity, and obtained differential phase contrast images in both x and y directions.

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