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Fluorescence optical super-resolution imaging of nitrogen-vacancy centers based on saturated competition microscopy
Author(s): Chuankang Li; Yuhang Li; Cuifang Kuang; Xu Liu
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Paper Abstract

Super-resolution optical microscopy has enabled the observation of ultra-fine structures and features beyond the diffraction limit, among which nonlinear absorption has been a useful tool to investigate physical and biological characteristics in sub-100 nanometer range. Saturation competition microscopy (SAC), based on nonlinear absorption principle, has been demonstrated to obtain high resolution in either fluorescence or non-fluorescence imaging of biological applications. Furthermore, fluorescent nanodiamonds (FNDs) have been widely researched as nitrogenvacancy centers (NVCs) in FNDs are important medium in quantum entanglement. Here, we report on the characterization of NVCs using pulse SAC (pSAC) microscopy. Resolution of λ/6 has been reached and the experimental results shows that it has better signal-to-background ratio (SBR) with lower illumination intensity in contrast to stimulated emission depletion microscopy (STED).

Paper Details

Date Published: 19 November 2019
PDF: 9 pages
Proc. SPIE 11186, Advanced Optical Imaging Technologies II, 1118603 (19 November 2019); doi: 10.1117/12.2537518
Show Author Affiliations
Chuankang Li, Zhejiang Univ. (China)
Yuhang Li, Zhejiang Univ. (China)
Cuifang Kuang, Zhejiang Univ. (China)
Ningbo Research Institute (China)
Shanxi Univ. (China)
Xu Liu, Zhejiang Univ. (China)
Shanxi Univ. (China)


Published in SPIE Proceedings Vol. 11186:
Advanced Optical Imaging Technologies II
Xiao-Cong Yuan; P. Scott Carney; Kebin Shi; Michael G. Somekh, Editor(s)

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