magnetic resonance method optically detected magnetic resonance A double resonance technique in which transitions between spin sublevels are detected by optical means (i.e. the polarisation or the intensity of light emitted or absorbed by the sample depends on the population distribution in the spin levels). Usually these are sublevels of a triplet and the transitions are induced by microwaves. CHMO:0001216 2009-03-25T11:38:35Z ODMR https://orcid.org/0000-0001-5985-7429