Near-Infrared Fluorescence from Silicon- and Nickel-Based Color Centers in High-Pressure High-Temperature Diamond Micro- and Nanoparticles
Alexander I Shames, Adamos Dalis, Andrew D Greentree, Brant C Gibson, Hiroshi Abe, Takeshi Ohshima, Olga Shenderova, Alexander Zaitsev, Philipp Reineck
Advanced Optical Materials | WILEY-V C H VERLAG GMBH | Published : 2020
Fluorescent color centers in diamond are invaluable room temperature quantum systems in fundamental scientific studies and vital for many emerging applications from inertial navigation to quantum sensing in biology. Yet, controlled production of specific color centers in synthetic diamond at scale remains challenging. Characteristics of silicon- and nickel-based defects with strong fluorescence in the 700–950 nm spectral region formed in Si- and Ni-doped diamond, created via high-pressure high-temperature synthesis in commercial quantities without irradiation, are reported. Using electron paramagnetic resonance spectroscopy and fluorescence spectroscopy, the presence of defects including the..View full abstract
Awarded by Australian Research Council (ARC)
Awarded by ARC DECRA fellowship
This work was supported by the Australian Research Council (ARC) through its Centre of Excellence for Nanoscale BioPhotonics (Grant No. CE140100003), Future Fellowship (Grant No. FT160100357), and the LIEF program (Grant No. LE160100051). P.R. acknowledges funding through the RMIT Vice-Chancellor's Research Fellowship and ARC DECRA fellowship (DE200100279). The authors acknowledge use of the MicroNano Research Facility (MNRF) and the RMIT Microscopy and Microanalysis Facility (RMMF) at RMIT University. Part of this study was carried out within the framework of the QST International Research Initiative.