COHERENCE IN MULTILEVEL SYSTEMS. I. COHERENCE IN EXCITED STATES AND ITS APPLICATION TO OPTICALLY DETECTED MAGNETIC RESONANCE IN PHOSPHORESCENT TRIPLET STATES

THE USE OP AN ""ORDERED"" ELECTRON SPIN STATE AS A PROBE IN MOLECULAR SPECTROSCOPY: OPTICALLY DETECTED ADIABATIC DEMAGNETIZATION IN EXCITED TRIPLET STATES IN ZERO FIELD

DIRECT MEASUREMENT OF THE QUANTUM HELD FOR THE CREATION OF MOBILE EXCITONS FROM LOCALIZED STATES USING OPTICALLY DETECTED ELECTRON SPIN COHERENCE