Soild and liquid 129Xe NMR signals enhanced by spin-exchange optical pumping under flow
流动系统中的激光增强固体和液体129Xe核磁共振信号

Laser polarized 129 Xe gas was produced by spin exchange with Cs atom optically pumped with diode laser array in a low field under flow. The nuclear spin polarizations of the solid and liquid 129 Xe frozen from the laser polarized 129 Xe gas were 2 16% and 1 45% respectively in the SY 80M NMR spectrometer, which corresponded to the enhancements of 6000 and 5000 compared to those without optical pumping under the same conditions. It could provide the base and possibility for quantum computers using laser enhanced solid and liquid 129 Xe. Polarization loss of transport and state change also was discussed in this paper.