An electro-mechano-optical NMR probe for 1H–13C double resonance in a superconducting magnet

Electro-mechano-optical (EMO) NMR, an emerging NMR detection technique with signal upconversion from radiofrequency to optical regimes via a Si3N4 nanomembrane, has become compatible with NMR analysis in chemistry using a highly homogeneous but space-limited magnetic field provided by a superconducting magnet (SCM) by development of a compact EMO NMR probe operational inside the SCM bore. Optical 13C NMR signal detection following 1H-13C magnetization transfer in liquid benzene is demonstrated.