Recursive polarization of nuclear spins in diamond at arbitrary magnetic fields

Autor: Pagliero, Daniela, Laraoui, Abdelghani, Henshaw, Jacob D., Meriles, Carlos A.
Rok vydání: 2014
Předmět:
Zdroj: Applied Physics Letters 105, 242402 (2014)
Druh dokumentu: Working Paper
DOI: 10.1063/1.4903799
Popis: We introduce an alternate route to dynamically polarize the nuclear spin host of nitrogen-vacancy (NV) centers in diamond. Our approach articulates optical, microwave and radio-frequency pulses to recursively transfer spin polarization from the NV electronic spin. Using two complementary variants of the same underlying principle, we demonstrate nitrogen nuclear spin initialization approaching 80% at room temperature both in ensemble and single NV centers. Unlike existing schemes, our approach does not rely on level anti-crossings and is thus applicable at arbitrary magnetic fields. This versatility should prove useful in applications ranging from nanoscale metrology to sensitivity-enhanced NMR.
Databáze: arXiv