Conference paper

Universal polarizer at 140 for DNP-enhanced NMR experiments

By shining mm-waves upon a sample containing unpaired electron spins, DNP provides a way to enhance NMR signals. We report the characterization of a universal polarizer for EM-waves at 140 GHz made by rectangular grooved mirrors as well as design considerations for optimizing the coupling of a millimeter wave Gaussian beam to DNP/NMR samples. © 2011 IEEE.


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