Journal article

Enhanced single-photon emission in the near infrared from a diamond color center

Igor Aharonovich, Chunyuan Zhou, Alastair Stacey, Julius Orwa, Stefania Castelletto, David Simpson, Andrew D Greentree, Francois Treussart, Jean-Francois Roch, Steven Prawer

PHYSICAL REVIEW B | AMER PHYSICAL SOC | Published : 2009

Abstract

Individual color centers in diamond are promising for near-term quantum technologies including quantum key distribution and metrology. Here we show fabrication of an as-yet uncharacterized nickel-related complex in diamond which has photophysical properties surpassing the two main-stay centers for single-photon applications, namely, the nitrogen-vacancy and the nickel-nitrogen complex (NE8) center. This center was fabricated using focused ion-beam implantation of nickel into isolated chemical vapor-deposited diamond crystals. A possible correlation of the center to a Ni/Si complex is substantiated by a coimplantation of Ni and Si into a pure bulk diamond. Room-temperature photoluminescence s..

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