Soft X-ray Vortex Beam detected by In-line Holography
Optics
2021-01-06 v1 Mesoscale and Nanoscale Physics
Abstract
We demonstrate the in-line holography for soft x-ray vortex beam having an orbital angular momentum. A hologram is recorded as an interference between a Bragg diffraction wave from a fork grating and a divergence wave generated by a Fresnel zone plate. The obtained images exhibit fork-shaped interference fringes, which confirms the formation of the vortex beam. By analyzing the interference image, we successfully obtained the spiral phase distribution. The results demonstrate that the in-line holography technique is promising for the characterization of topological magnets, such as magnetic skyrmions.
Keywords
Cite
@article{arxiv.2006.16552,
title = {Soft X-ray Vortex Beam detected by In-line Holography},
author = {Yuta Ishii and Kohei Yamamoto and Yuichi Yokoyama and Masaichiro Mizumaki and Hironori Nakao and Taka-hisa Arima and Yuichi Yamasaki},
journal= {arXiv preprint arXiv:2006.16552},
year = {2021}
}