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arXiv · 1305.1515

Observation of nitrogen vacancy photoluminescence from an optically levitated nanodiamond

Levi P. Neukirch·Jan Gieseler·Romain Quidant·Lukas Novotny·A. Nick Vamivakas
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Abstract

We present the first evidence of nitrogen vacancy (NV) photoluminescence from a nanodiamond suspended in a free-space optical dipole trap at atmospheric pressure. The photoluminescence rates are shown to decrease with increasing trap laser power, but are inconsistent with a thermal quenching process. For a continuous-wave trap, the neutral charge state (NV$^0$) appears to be suppressed. Chopping the trap laser yields higher total count rates and results in a mixture of both NV$^0$ and the negative charge state (NV$^-$).

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Levi P. Neukirch, Jan Gieseler, Romain Quidant, Lukas Novotny, A. Nick Vamivakas. 2013-08-07. Observation of nitrogen vacancy photoluminescence from an optically levitated nanodiamond. https://doi.org/10.1364/ol.38.002976

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