680-890nm spectral range of nickel-nitrogen and nickel-silicon complex single centres in diamond

Stefania Castelletto; Andrew Edmonds

doi:10.1117/12.958606

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15 October 2012 680-890nm spectral range of nickel-nitrogen and nickel-silicon complex single centres in diamond

Stefania Castelletto, Andrew Edmonds

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Proceedings Volume 8518, Quantum Communications and Quantum Imaging X; 85180R (2012) https://doi.org/10.1117/12.958606
Event: SPIE Optical Engineering + Applications, 2012, San Diego, California, United States

Abstract

Fluorescent emitters in nanodiamonds are considered to be a valuable resource for emerging fields such as quantum communication, quantum photonics and biological imaging. In this paper we report a wide range of narrow bandwidth spectral emission lines arising from different color centers at room temperature. We associate the zero phonon lines, observed using confocal microscopy, with previously identified nickel-related centers in high pressure high temperature diamond, with a Si/Ni complex and silicon vacancy defects. In particular we show the first observation of a 850 nm emission in diamond with single photon signature, indicating the potential for diamond to harbor infrared single-photon sources. Index Terms diamond defects, single-photon emission, confocal microscopy.

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Stefania Castelletto and Andrew Edmonds "680-890nm spectral range of nickel-nitrogen and nickel-silicon complex single centres in diamond", Proc. SPIE 8518, Quantum Communications and Quantum Imaging X, 85180R (15 October 2012); https://doi.org/10.1117/12.958606

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