Stable sub-micrometre high-flux probe for soft X-ray ARPES using a monolithic Wolter mirror

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 b...

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Detalles Bibliográficos
Autores principales: Senba, Yasunori, Kishimoto, Hikaru, Takeo, Yoko, Yumoto, Hirokatsu, Koyama, Takahisa, Mimura, Hidekazu, Ohashi, Haruhiko
Formato: Online Artículo Texto
Lenguaje:English
Publicado: International Union of Crystallography 2020
Materias:
Research Papers
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7467342/
https://www.ncbi.nlm.nih.gov/pubmed/32876584
http://dx.doi.org/10.1107/S1600577520007274
Descripción
Sumario: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.

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