Parnell, S.R., Deppe, M.H., Parra-Robles, J. et al. (1 more author) (2010) Enhancement of Xe-129 polarization by off-resonant spin exchange optical pumping. Journal of Applied Physics, 108 (6). Art no.064908 . ISSN 0021-8979
Abstract
A high power narrow line width (38 W, 0.09 nm full width at half maximum) external cavity diode laser is investigated for rubidium spin exchange optical pumping of Xe-129. This tunable photon source has a constant line width, independent of operating power or wavelength within a 1 nm tuning range. When using this laser, an increase in the Xe-129 nuclear polarization is observed when optically pumping at a lower wavelength than the measured Rb electron D-1 absorption. The exact detuning from D1 for the highest polarization is dependent upon the gas density. Furthermore, at high power and/or high Rb density, a reduction in the polarization occurs at the optimum wavelength as previously reported in spin exchange optical pumping studies of He-3 which is consistent with high absorption close to the cell front face. These results are encouraging for moderate high throughput polarization of Xe-129 in the midpressure range of (0.5-2.0 amagat). (C) 2010 American Institute of Physics. [doi: 10.1063/1.3478707]
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2010 American Institute of Physics. This is an author produced version of a paper subsequently published in Journal of Applied Physics. Uploaded in accordance with the publisher's self-archiving policy. |
Keywords: | Laser-Diode Arrays; Hyperpolarized XE-129; NMR-Spectroscopy; HE-3; Cells; RB; Nuclei; MRI |
Dates: |
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Institution: | The University of Sheffield |
Academic Units: | The University of Sheffield > Faculty of Medicine, Dentistry and Health (Sheffield) > The Medical School (Sheffield) |
Depositing User: | Miss Anthea Tucker |
Date Deposited: | 01 Dec 2010 15:18 |
Last Modified: | 08 Feb 2013 17:29 |
Published Version: | http://dx.doi.org/10.1063/1.3478707 |
Status: | Published |
Publisher: | American Institute of Physics |
Refereed: | Yes |
Identification Number: | 10.1063/1.3478707 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:42689 |