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

被引:159
作者
Chen, X. -D. [1 ]
Dong, C. -H. [1 ]
Sun, F. -W. [1 ]
Zou, C. -L. [1 ]
Cui, J. -M. [1 ]
Han, Z. -F. [1 ]
Guo, G. -C. [1 ]
机构
[1] Univ Sci & Technol China, Key Lab Quantum Informat, Hefei 230026, Peoples R China
基金
中国国家自然科学基金;
关键词
colour centres; diamond; energy gap; fluorescence; microwave-optical double resonance; thermal expansion; vacancies (crystal); SPIN; RESONANCE;
D O I
10.1063/1.3652910
中图分类号
O59 [应用物理学];
学科分类号
摘要
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. (C) 2011 American Institute of Physics. [doi: 10.1063/1.3652910]
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页数:3
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