Journal
APPLIED PHYSICS LETTERS
Volume 108, Issue 20, Pages -Publisher
AIP Publishing
DOI: 10.1063/1.4949357
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Funding
- University of Washington
- JSPS KAKENHI [26220602]
- NSF [IIP-1549836]
- NSF of China [61306123]
- RGC of HKSAR [27205515]
- Grants-in-Aid for Scientific Research [26220602, 26249108] Funding Source: KAKEN
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We present a promising method for creating high-density ensembles of nitrogen-vacancy centers with narrow spin-resonances for high-sensitivity magnetic imaging. Practically, narrow spin-resonance linewidths substantially reduce the optical and RF power requirements for ensemble-based sensing. The method combines isotope purified diamond growth, in situ nitrogen doping, and helium ion implantation to realize a 100nm-thick sensing surface. The obtained 10(17) cm(-3) nitrogen-vacancy density is only a factor of 10 less than the highest densities reported to date, with an observed 200 kHz spin resonance linewidth over 10 times narrower. Published by AIP Publishing.
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