Characterization of a HPHT boron ion-implanted diamond X-ray mirror following high vacuum annealing

• DOI: 10.1016/j.diamond.2024.111212
• Publication Date: 2024-05-22T15:33:23Z
• Authors: R.A. Margraf-O'Neal; M.D. Ynsa; J. Krzywinski; M.L. Ng; J.P. MacArthur; F. Ke; Y. Zhong; S.-K. Mo; P. Pradhan; R. Robles; A. Robert; T. Sato; D. Zhu; A. Halavanau; G. Marcus
• Keywords: Diamond cubic

The incorporation of boron into a diamond lattice holds the potential to advance X-ray optics, offering capability manipulate various parameters lattice. This includes enhancing near-infrared absorption relative pure diamond, thereby enabling Q-switchable optics. use MeV implantation emerges as promising method for precisely doping However, these optics function effectively Bragg-reflecting mirrors, ion must be executed with meticulous attention maintaining strain-free, perfect study aimed investigate feasibility utilizing 9 beam high energy implantation. Different areas high-pressure, high-temperature (HPHT) sample were subjected irradiation Boron ions, ranging in fluences from 5×1015 2.5×1016ions/cm2. Following implantation, vacuum annealing was performed restore Our assessment utilized rocking curve imaging, surface profilometry, and micro-Raman spectroscopy, additional observations on transmission properties. measurement high-quality Bragg reflection through sensitive implantation-induced strain defects, served an key diagnostic effectiveness this ion-implanted optic.