Room-temperature optical polarization of nuclear ensembles in diamond

Details Room-temperature optical polarization of nuclear ensembles in diamond Room-temperature optical polarization of nuclear ensembles in diamond

2012-02-06

arxiv.org/abs/1202.1072v2

Physics

Quantum Physics

10 pages, 5 figures

Scientific paper

We report polarization of a dense nuclear-spin ensemble in diamond at room temperature. The method is based on the transfer of electron spin polarization of negatively charged nitrogen vacancy (NV) color centers to the nuclear spins via the excited-state level anti-crossing (ESLAC) of the center. We demonstrate polarization of 80% of the 14N nuclear spins related to the NV centers, as well as that of 50% of the proximal 13C nuclear spins. This work may enable polarization of the 13C in bulk diamond, which is of interest to applications of nuclear magnetic resonance, quantum memories in hybrid quantum devices, and in sensing.

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