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Temperature dependent energy level shifts of nitrogen-vacancy centers in diamond

2011; American Institute of Physics; Volume: 99; Issue: 16 Linguagem: Inglês

10.1063/1.3652910

1520-8842

Xiu-Qi Chen, Chun‐Hua Dong, Fang‐Wen Sun, Chang‐Ling Zou, Jin‐Ming Cui, Z.-F. Han, Guang‐Can Guo,

High-pressure geophysics and materials

Magnetic resonance and fluorescence spectra of nitrogen-vacancy (NV) color centers ensemble in high purity diamond sample were measured, with temperature ranging from 5.6 K to 295 K. Both microwave and optical transition energies have similar nonlinear temperature dependent changes, which might mainly originate from the local thermal expansion. As the frequency shifts will reduce the fidelity of resonant quantum control, the present results demonstrate the necessity of taking temperature fluctuation into consideration. For temperature below 100 K, the transition energies show tendencies to be constant, which indicate higher stability and performance in applications with NV centers.