Effects of magnetic field on the low temperature emission of nitrogen vacancy centres in diamond
Under optical illumination in the blue or green, negatively charged nitrogen vacancy centres in diamond emit in the red. The intensity of this emission varies slightly depending on spin state occupation. Optical transitions occur predominantly without change of spin projection. However, excited m s = ±1 states can decay non-radiatively to the ground m s = 0 state via intermediary singlet states.With continuous excitation, this effect transfers most of the population to the ms = 0 state...[Show more]
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