Journal
OPTICS LETTERS
Volume 38, Issue 16, Pages 2976-2979Publisher
OPTICAL SOC AMER
DOI: 10.1364/OL.38.002976
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Funding
- University of Rochester Department of Physics and Astronomy
- Institute of Optics at the University of Rochester
- Dr. Richard Hammond, Physics Division, U.S. Army Research Office [W911NF0910425]
- European Community [259196]
- Fundacio privada CELLEX
- U.S. Department of Energy [DE-FG02-01ER15204]
- ICREA Funding Source: Custom
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We present what we believe to be the first evidence of nitrogen vacancy (NV) photoluminescence (PL) from a nanodiamond suspended in a free-space optical dipole trap at atmospheric pressure. The PL 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 (NV0) appears to be suppressed. Chopping the trap laser yields higher total count rates and results in a mixture of both NV0 and the negative charge state (NV-). (C) 2013 Optical Society of America
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