Dmitri Donetski
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View article: Review of virtual substrate technologies for 6.3 Ångström lattice constants
Review of virtual substrate technologies for 6.3 Ångström lattice constants Open
Virtual substrates with lattice constants in the range mid-way between InAs and InSb have been developed using molecular beam epitaxy (MBE). The III–V alloys in this range are of particular interest for narrow bandgap device applications, …
View article: High power density soft x-ray GaAs photodiodes with tailored spectral response
High power density soft x-ray GaAs photodiodes with tailored spectral response Open
GaAs photodiode arrays have been designed for non-destructive monitoring of x-ray beam position in soft coherent beamline front ends in synchrotron light sources. A shallow p-on-n junction was employed to reduce the device photocurrent den…
View article: Progress Towards Soft X-Ray Beam Position Monitor Development
Progress Towards Soft X-Ray Beam Position Monitor Development Open
X-ray beam position monitors (BPMs) are instrumental for storage ring light sources, where they reliably provide positional measurements of high-power beams in hard X-ray beamlines. However, despite a growing need, coming especially from c…