Longitudinal Spin Relaxation of Optically Pumped Rubidium Atoms in Solid Parahydrogen
Loading...
Authors
Upadhyay, Sunil
Kanagin, Andrew N.
Hartzell, Chase
Christy, Tim
Arnott, W. Patrick
Momose, Takamasa
Patterson, David
Weinstein, Jonathan D.
Issue Date
2016
Type
Article
Language
Keywords
Alternative Title
Abstract
We have grown crystals of solid parahydrogen using a single closed-cycle cryostat. We have doped the crystals with rubidium atoms at densities on the order of 1017 cm-(3) and used optical pumping to polarize the spin state of the implanted atoms. The optical spectrum of the rubidium atoms shows larger broadening than previous work in which the rubidium was implanted in solid argon or neon. However, the optical pumping behavior is significantly improved, with both a larger optical pumping signal and a longer longitudinal relaxation time. The spin relaxation time shows a strong dependence on orthohydrogen impurity levels in the crystal, as well as the applied magnetic field. Current performance is comparable to state-of-the-art solid state systems at comparable spin densities, with potential for improvement at higher parahydrogen purities.
Description
Citation
Upadhyay, S., Kanagin, A. N., Hartzell, C., Christy, T., Arnott, W. P., Momose, T., … Weinstein, J. D. (2016). Longitudinal Spin Relaxation of Optically Pumped Rubidium Atoms in Solid Parahydrogen. Physical Review Letters, 117(17). doi:10.1103/physrevlett.117.175301
Publisher
License
In Copyright (All Rights Reserved)
Journal
Volume
Issue
PubMed ID
ISSN
0031-9007