Approaching the theoretical limit for 129 Xe hyperpolarisation with continuous-flow spin-exchange optical pumping

We demonstrate here experimental ¹²⁹ Xe polarisations of 80 %, approaching the theoretical limit of 86% predicted by our previous models, and which has been made possible by incorporation of a 50 W volume holographic grating laser diode array to a mid-pressure (2 bars) continuous-flow spin-exchange optical pumping ¹²⁹ Xe polariser.

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