Coherent Population Trapping of Single Spins in Diamond Under Optical Excitation

Abstract

Coherent population trapping is demonstrated in single nitrogen-vacancy centers in diamond under optical excitation. For sufficient excitation power, the fluorescence intensity drops almost to the background level when the laser modulation frequency matches the 2.88 GHz splitting of the ground states. The results are well described theoretically by a four-level model, allowing the relative transition strengths to be determined for individual centers. The results show that all-optical control of single spins is possible in diamond.

minor corrections

References in corpus (4)

• Stark shift control of single optical centers in diamond
• Stimulated and spontaneous optical generation of electron spin coherence in charged GaAs quantum dots
• Polarization and readout of coupled single spins in diamond
• Coherent Population Trapping in Diamond N-V Centers at Zero Magnetic Field

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