Color centers in diamond, as single photon emitters, are leading candidates for future quantum devices due to their room temperature operation and photostability. The recently discovered chromium-related centers are particularly attractive because they possess narrow bandwidth emission and a very short lifetime. In this paper, we investigate the fabrication methodologies for engineering these centers in monolithic diamond. We show that the emitters can be successfully fabricated by ion implantation of chromium in conjunction with oxygen or sulfur. Furthermore, our results indicate that the background nitrogen concentration is an important parameter, which governs the probability of success in generating these centers.
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Aharonovich et al. (2011) studied this question.
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