Control and coherence of the optical transition of single defect centers in diamond

Details Control and coherence of the optical transition of single defect centers in diamond Control and coherence of the optical transition of single defect centers in diamond

2010-05-24

arxiv.org/abs/1005.4428v1

Phys. Rev. Lett. 105, 177403 (2010)

Physics

Quantum Physics

5 pages,4 figures

Scientific paper

10.1103/PhysRevLett.105.177403

We demonstrate coherent control of the optical transition of single Nitrogen-Vacancy defect centers in diamond. On applying short resonant laser pulses, we observe optical Rabi oscillations with a half-period as short as 1 nanosecond, an order of magnitude shorter than the spontaneous emission time. By studying the decay of Rabi oscillations, we find that the decoherence is dominated by laser-induced spectral jumps. By using a low-power probe pulse as a detuning sensor and applying post-selection, we demonstrate that spectral diffusion can be overcome in this system to generate coherent photons.

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