title: Generation of laser-polarized xenon using fiber-coupled laser-diode arrays narrowed with integrated volume holographic gratings.
abstract: Volume holographic gratings (VHGs) can be exploited to narrow the spectral output of high-power laser-diode arrays (LDAs) by nearly an order of magnitude, permitting more efficient generation of laser-polarized noble gases for various applications. A approximately 3-fold improvement in (129)Xe nuclear spin polarization, P(Xe), (compared to a conventional LDA) was achieved with the VHG-LDA's center wavelength tuned to a wing of the Rb D(1) line. Additionally, an anomalous dependence of P(Xe) on the xenon density within the OP cell is reported-including high P(Xe) values (>10%) at high xenon partial pressures (approximately 1000 torr).
authors.affiliation: Department of Chemistry and Biochemistry, Southern Illinois University, Carbondale, IL 62901, USA.
authors.forename: Panayiotis
authors.initials: P
authors.lastname: Nikolaou
authors.forename: Nicholas
authors.initials: N
authors.lastname: Whiting
authors.forename: Neil A
authors.initials: NA
authors.lastname: Eschmann
authors.forename: Kathleen E
authors.initials: KE
authors.lastname: Chaffee
authors.forename: Boyd M
authors.initials: BM
authors.lastname: Goodson
authors.forename: Michael J
authors.initials: MJ
authors.lastname: Barlow
mesh_terms: D000399:Air Pressure; D006696:Holography / Q000379:methods*; D007834:Lasers; D009682:Magnetic Resonance Spectroscopy / Q000379:methods*; D013113:Spin Labels; D013696:Temperature; D014978:Xenon / Q000737:chemistry*; D014980:Xenon Radioisotopes
chemical_list: D013113:Spin Labels; D014980:Xenon Radioisotopes; D014978:Xenon