Local and bulk (13)C hyperpolarization in nitrogen-vacancy-centred diamonds at variable fields and orientations.

ABSTRACT: Polarizing nuclear spins is of fundamental importance in biology, chemistry and physics. Methods for hyperpolarizing (13)C nuclei from free electrons in bulk usually demand operation at cryogenic temperatures. Room temperature approaches targeting diamonds with nitrogen-vacancy centres could alleviate this need; however, hitherto proposed strategies lack generality as they demand stringent conditions on the strength and/or alignment of the magnetic field. We report here an approach for achieving efficient electron-(13)C spin-alignment transfers, compatible with a broad range of magnetic field strengths and field orientations with respect to the diamond crystal. This versatility results from combining coherent microwave- and incoherent laser-induced transitions between selected energy state

SUBMITTER: Alvarez GA 

PROVIDER: S-EPMC4598721 | biostudies-literature | 2015 Sep

REPOSITORIES: biostudies-literature