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Virtual Journal for Biomedical Optics

Virtual Journal for Biomedical Optics

| EXPLORING THE INTERFACE OF LIGHT AND BIOMEDICINE

  • Editors: Andrew Dunn and Anthony Durkin
  • Vol. 8, Iss. 7 — Aug. 1, 2013

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

Robert Chapman and Taras Plakhoitnik  »View Author Affiliations


Optics Letters, Vol. 38, Issue 11, pp. 1847-1849 (2013)
http://dx.doi.org/10.1364/OL.38.001847


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Abstract

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.

© 2013 Optical Society of America

OCIS Codes
(160.2220) Materials : Defect-center materials
(160.2540) Materials : Fluorescent and luminescent materials
(180.2520) Microscopy : Fluorescence microscopy
(160.4236) Materials : Nanomaterials

ToC Category:
Materials

History
Original Manuscript: March 12, 2013
Manuscript Accepted: April 22, 2013
Published: May 21, 2013

Virtual Issues
Vol. 8, Iss. 7 Virtual Journal for Biomedical Optics

Citation
Robert Chapman and Taras Plakhoitnik, "Background-free imaging of luminescent nanodiamonds using external magnetic field for contrast enhancement," Opt. Lett. 38, 1847-1849 (2013)
http://www.opticsinfobase.org/vjbo/abstract.cfm?URI=ol-38-11-1847

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