Background-free imaging of luminescent nanodiamonds using external magnetic field for contrast enhancement

被引：24

作者：

Chapman, Robert ^{[1
]}

Plakhotnik, Taras ^{[1
]}

机构：

[1] Univ Queensland, Sch Math & Phys, Brisbane, Qld 4072, Australia

来源：

OPTICS LETTERS | 2013年 / 38卷 / 11期

关键词：

DIAMOND NANOPARTICLES; FLUORESCENT NANODIAMONDS; CELLULAR BIOMARKERS; NANOSCALE; CENTERS; MICROSCOPY; SPINS;

D O I：

10.1364/OL.38.001847

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We demonstrate a way of contrast increasing in wide-field optical images of diamond nanocrystals containing nitrogen-vacancy (NV) centers surrounded by an autofluorescing material, as in the case of intercellular imaging. Subtraction of an image taken in the presence of an external magnetic field of about 25 mT from an image of the same area measured when the field was absent eliminates the background and enhances the contrast because luminescence of the NV centers decreases in the presence of the field while the auto luminescence is not affected. (C) 2013 Optical Society of America

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页码：1847 / 1849

页数：3

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