TY - JOUR
T1 - Soft-X-Ray Vortex Beam Detected by Inline Holography
AU - Ishii, Yuta
AU - Yamamoto, Kohei
AU - Yokoyama, Yuichi
AU - Mizumaki, Masaichiro
AU - Nakao, Hironori
AU - Arima, Taka Hisa
AU - Yamasaki, Yuichi
N1 - Funding Information:
We thank M. Hatayama and J. Sasakura at NTT-AT for preparing the fork-shaped grating. This work was supported in part by PRESTO Grant No. JP-MJPR177A, by Grants-in-Aid for Scientific Research No. JP16H05990, No. JP17K05130, No. JP19H04399, No. JP19K23590, and No. JP20H04458, by MEXT Quantum Leap Flagship Program (MEXT Q-LEAP) Grant No. JPMXS0120184122, and by the Research Foundation for Opto-Science and Technology. The soft-x-ray scattering work was performed with the approval of the Photon Factory Program Advisory Committee (Proposals No. 2015S2-007, No. 2018S2-006, No. 2019G590, and No. 2019PF-22).
Publisher Copyright:
© 2020 American Physical Society.
PY - 2020/12/24
Y1 - 2020/12/24
N2 - We demonstrate inline holography with a soft-x-ray vortex beam having an orbital angular momentum. A hologram is recorded as an interference pattern between a Bragg-diffracted wave from a fork grating and a divergent wave generated by a Fresnel zone plate. The images obtained exhibit fork-shaped interference fringes, which confirm the formation of a vortex beam. By analyzing the interference images, we successfully obtain a spiral phase distribution with a topological charge =±1. The results demonstrate that the inline-holography technique may be an effective probe for the characterization of topological defects in magnetic textures.
AB - We demonstrate inline holography with a soft-x-ray vortex beam having an orbital angular momentum. A hologram is recorded as an interference pattern between a Bragg-diffracted wave from a fork grating and a divergent wave generated by a Fresnel zone plate. The images obtained exhibit fork-shaped interference fringes, which confirm the formation of a vortex beam. By analyzing the interference images, we successfully obtain a spiral phase distribution with a topological charge =±1. The results demonstrate that the inline-holography technique may be an effective probe for the characterization of topological defects in magnetic textures.
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U2 - 10.1103/PhysRevApplied.14.064069
DO - 10.1103/PhysRevApplied.14.064069
M3 - Article
AN - SCOPUS:85099132892
VL - 14
JO - Physical Review Applied
JF - Physical Review Applied
SN - 2331-7019
IS - 6
M1 - 064069
ER -