Generation of laser-polarized xenon using fiber-coupled laser-diode arrays narrowed with integrated volume holographic gratings
Generation of laser-polarized xenon using fiber-coupled laser-diode arrays narrowed with integrated volume holographic gratings
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DOI：
10.1016/j.jmr.2008.12.015
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发表时间：
2009-04-01
影响因子：
2.2
通讯作者：
Barlow, Michael J.
中科院分区：
文献类型：
--
作者：
Nikolaou, Panayiotis;Whiting, Nicholas;Barlow, Michael J.
体全息光栅（VHG）可用于将高功率激光二极管阵列（LDA）的光谱输出缩小近一个数量级，从而能够更有效地生成用于各种应用的激光偏振惰性气体。通过将 VHG-LDA 的中心波长调谐到 Rb D-1 线的翼，Xe-129 核自旋极化 P-xe（与传统 LIDA 相比）实现了类似于 3 倍的改进。此外，据报道，P-xe 对 OP 电池内氙气密度的异常依赖性 - 包括高氙分压（类似于 1000 托）下的高 P-xe 值（>10%）。 (C) 2008 Elsevier Inc. 保留所有权利。
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 similar to 3-fold improvement in Xe-129 nuclear spin polarization, P-xe, (compared to a conventional LIDA) 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 (similar to 1000 torr). (C) 2008 Elsevier Inc. All rights reserved.