All-optical hyperpolarization of electron and nuclear spins in diamond

All-optical hyperpolarization of electron and nuclear spins in diamond Low thermal polarization of nuclear spins is a primary sensitivity limitation for nuclear magnetic resonance. Here we demonstrate optically pumped (microwave-free) nuclear spin polarization of C13 and N15 in N15-doped diamond. N15 polarization enhancements up to −2000 above thermal equilibrium are observed in the paramagnetic system Ns0 . Nuclear spin polarization is shown to diffuse to bulk C13 with NMR enhancements of −200 at room temperature and −500 at 240 K, enabling a route to microwave-free high-sensitivity NMR study of biological samples in ambient conditions. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Physical Review B American Physical Society (APS)

All-optical hyperpolarization of electron and nuclear spins in diamond

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All-optical hyperpolarization of electron and nuclear spins in diamond

Abstract

Low thermal polarization of nuclear spins is a primary sensitivity limitation for nuclear magnetic resonance. Here we demonstrate optically pumped (microwave-free) nuclear spin polarization of C13 and N15 in N15-doped diamond. N15 polarization enhancements up to −2000 above thermal equilibrium are observed in the paramagnetic system Ns0 . Nuclear spin polarization is shown to diffuse to bulk C13 with NMR enhancements of −200 at room temperature and −500 at 240 K, enabling a route to microwave-free high-sensitivity NMR study of biological samples in ambient conditions.
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Publisher
The American Physical Society
Copyright
Copyright © ©2017 American Physical Society
ISSN
1098-0121
eISSN
1550-235X
D.O.I.
10.1103/PhysRevB.96.054101
Publisher site
See Article on Publisher Site

Abstract

Low thermal polarization of nuclear spins is a primary sensitivity limitation for nuclear magnetic resonance. Here we demonstrate optically pumped (microwave-free) nuclear spin polarization of C13 and N15 in N15-doped diamond. N15 polarization enhancements up to −2000 above thermal equilibrium are observed in the paramagnetic system Ns0 . Nuclear spin polarization is shown to diffuse to bulk C13 with NMR enhancements of −200 at room temperature and −500 at 240 K, enabling a route to microwave-free high-sensitivity NMR study of biological samples in ambient conditions.

Journal

Physical Review BAmerican Physical Society (APS)

Published: Aug 1, 2017

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