Open AccessCoherent X-ray beam expander based on a multilens interferometer
Author(s) -
Dmitrii Zverev,
I. Snigireva,
M. N. Sorokovikov,
V. Yunkin,
С. П. Кузнецов,
A. Snigirev
Publication year - 2021
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.434656
Subject(s) - undulator , optics , beamline , interferometry , physics , beam expander , beam (structure) , astronomical interferometer , laser , laser beams
A coherent X-ray beam expander based on a multilens interferometer is proposed in this paper. The multilens interferometer allows efficient generation of a highly diverging coherent beam up to several milliradians in the hard X-ray energy range. The optical properties of the interferometer were experimentally demonstrated at the ESRF ID13 undulator beamline (Grenoble, France), using 12.4 keV X-rays. The beam expander allowed us to control the angular size and photon flux density of the formed beam and enabled operation in both coherent and incoherent modes. The experimental results were fully consistent with the theoretical concepts and appropriate computer simulations. Future design improvements and related applications are also discussed.