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Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 35, Iss. 16 — Aug. 15, 2010
  • pp: 2789–2791

Use of nonlinear upconverting nanoparticles provides increased spatial resolution in fluorescence diffuse imaging

Pontus Svenmarker, Can T. Xu, and Stefan Andersson-Engels  »View Author Affiliations


Optics Letters, Vol. 35, Issue 16, pp. 2789-2791 (2010)
http://dx.doi.org/10.1364/OL.35.002789


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Abstract

Fluorescence diffuse imaging (FDI) suffers from limited spatial resolution. In this Letter, we report a scanning imaging approach to increase the resolution of FDI using nonlinear fluorophores. The resolution of a linear fluorophore was compared with nonlinear upconverting nanoparticles ( Na YF 4 : Yb 3 + / Tm 3 + ) in a tissue phantom. A resolution improvement of a factor of 1.3 was found experimentally. Simulations suggested a maximum resolution improvement of a factor of 1.45. Usage of nonlinear fluorophores is a promising method for increasing the spatial resolution in FDI.

© 2010 Optical Society of America

OCIS Codes
(170.0170) Medical optics and biotechnology : Medical optics and biotechnology
(190.3970) Nonlinear optics : Microparticle nonlinear optics
(190.7220) Nonlinear optics : Upconversion
(350.5730) Other areas of optics : Resolution
(110.0113) Imaging systems : Imaging through turbid media

ToC Category:
Imaging Systems

History
Original Manuscript: May 6, 2010
Revised Manuscript: July 15, 2010
Manuscript Accepted: July 15, 2010
Published: August 13, 2010

Virtual Issues
Vol. 5, Iss. 13 Virtual Journal for Biomedical Optics

Citation
Pontus Svenmarker, Can T. Xu, and Stefan Andersson-Engels, "Use of nonlinear upconverting nanoparticles provides increased spatial resolution in fluorescence diffuse imaging," Opt. Lett. 35, 2789-2791 (2010)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-35-16-2789


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