A new technical method is developed for soft x-ray spectroscopy of near-edge x-ray absorption fine structure (NEXAFS). The measurement is performed with continuously rotating linearly polarized light over 2π, generated by a segmented undulator. A demonstration of the rotational NEXAFS experiment was successfully made with a 2D film, showing detailed polarization-dependence in intensity of the molecular orbitals. The present approach provides varieties of technical opportunities that are compatible with the state-of-the-art experiments in nano-space and under the operando condition.
@article{arxiv.2103.13554,
title = {A novel measurement approach for near-edge x-ray absorption fine structure: continuous 2$\pi$ angular rotation of linear polarization},
author = {Yoshiki Kudo and Yasuyuki Hirata and Masafumi Horio and Masahito Niibe and Iwao Matsuda},
journal= {arXiv preprint arXiv:2103.13554},
year = {2021}
}