Open AccessStable sub‐micrometre high‐flux probe for soft X‐ray ARPES using a monolithic Wolter mirror
Author(s) -
Senba Yasunori,
Kishimoto Hikaru,
Takeo Yoko,
Yumoto Hirokatsu,
Koyama Takahisa,
Mimura Hidekazu,
Ohashi Haruhiko
Publication year - 2020
Publication title -
journal of synchrotron radiation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.172
H-Index - 99
ISSN - 1600-5775
DOI - 10.1107/s1600577520007274
Subject(s) - angle resolved photoemission spectroscopy , physics , optics , flux (metallurgy) , photon flux , x ray optics , x ray , photoemission spectroscopy , photon , materials science , x ray photoelectron spectroscopy , nuclear magnetic resonance , electronic structure , condensed matter physics , metallurgy
A focusing optics that can provide a sub‐micrometre high‐flux probe for soft X‐ray micrometre‐scale angle‐resolved photoemission spectroscopy (ARPES) is proposed. A monolithic Wolter‐type mirror with a large acceptance, achromatism and small comatic aberration was designed and evaluated. A focused beam size of 0.4 µm (vertical) × 4 µm (horizontal), a high throughput of 59% and a high tolerance of 1.6 mrad to the pitching error were realized at a photon energy of 1000 eV. A Wolter‐type mirror can be practically employed as a stable sub‐micrometre focusing mirror with high throughput in ARPES applications.