1202.1072 (Ran Fischer et al.)

Room-temperature optical polarization of nuclear ensembles in diamond    [PDF]

Ran Fischer, Andrey Jarmola, Pauli Kehayias, Dmitry Budker

We report polarization of a dense ensemble of nuclear spins in diamond at
room temperature. The polarization 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 polarization of 50% of the proximal 13C nuclear
spins. This work may enable polarization of the 13C in bulk diamond, which is
of particular interest to applications of nuclear magnetic resonance, to
quantum memories in hybrid quantum devices, and in sensing.

View original: http://arxiv.org/abs/1202.1072