Open AccessTowards high‐quality nitrogen‐doped diamond single crystals for X‐ray optics
Author(s) -
Shevyrtalov Sergey,
Barannikov Alexander,
Palyanov Yurii,
Khokhryakov Alexander,
Borzdov Yurii,
Sergueev Ilya,
Rashchenko Sergey,
Snigirev Anatoly
Publication year - 2021
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/s1600577520014538
Subject(s) - diamond , polishing , synchrotron , optics , synchrotron radiation , materials science , characterization (materials science) , diffraction , doping , bragg's law , x ray , crystallography , optoelectronics , chemistry , physics , composite material
In this manuscript, characterization of single‐crystalline (111) plates prepared from type‐Ib diamonds with a nitrogen content of 100–150 ppm by means of high‐resolution rocking‐curve imaging (RCI) is reported. Contrary to common opinion regarding the intrinsically poor diffraction quality of type‐I diamonds, RCI showed the presence of nearly defect‐free areas of several millimetres squared in the central part of the diamond plates. The observed broadening of the rocking curves is a result of the cutting and polishing processes, causing strains around the edges of the plates and rare defects. An improvement of the preparation technique will thus allow single‐crystalline diamond plates to be made for Laue and Bragg monochromators and beam splitters from type‐Ib material with areas large enough to be used as optical elements at fourth‐generation synchrotron facilities.