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We propose a new, more efficient, and potentially cost effective, solid-statenuclear spin hyperpolarization method combining the Cross Effect mechanism andelectron spin optical hyperpolarization in rotating solids. We firstdemonstrate optical hyperpolarization in the solid state at low temperature andlow field, and then investigate its field dependence to obtain the optimalcondition for high-field electron spin hyperpolarization. The results are thenincorporated into advanced Magic Angle Spinning Dynamic Nuclear Polarization(MAS-DNP) numerical simulations that show that optically pumped MAS-DNP couldyield breakthrough enhancements at very high magnetic fields. Based on theseinvestigations, enhancements greater than the ratio of electron to nucleusmagnetic moments (>658 for 1H) are possible without microwave irradiation. Thiscould solve at once the MAS-DNP performance decrease with increasing field andthe high cost of MAS-DNP instruments at very high fields.

Spinning Driven Dynamic Nuclear Polarization with Optical Pumping