Nonlinear absorption properties of the charge states of nitrogen-vacancy centers in nanodiamonds

被引:22
作者
Ivanov, Ivaylo P. [1 ]
Li, Xiangping [1 ]
Dolan, Philip R. [1 ]
Gu, Min [1 ]
机构
[1] Swinburne Univ Technol, Fac Engn & Ind Sci, Ctr Microphoton, Hawthorn, Vic 3122, Australia
基金
澳大利亚研究理事会;
关键词
FLUORESCENCE; SPECTROSCOPY; SPINS;
D O I
10.1364/OL.38.001358
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
We have conducted a study on the nonlinear absorption properties of nitrogen-vacancy color centers in processed nanodiamonds. Their two-photon (2P) spectra disclose distinguishable features for the two charge states in which the center exists. The 2P absorption cross section is found to be between 0.1 and 0.5 GM in the wavelength range between 800 and 1040 nm. In addition, the center demonstrates the feature of strong 2P absorption for its neutral charge state below 1000 nm excitation wavelength and predominant 2P absorption by the negative charge state above this wavelength. (C) 2013 Optical Society of America
引用
收藏
页码:1358 / 1360
页数:3
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