Document Type

Article

Source Publication Title

Applied Physics Letters

DOI

http://dx.doi.org/10.1063/1.4737211

Abstract

The spatial resolution of fluorescence imaging techniques in deep optically turbid media such astissues is limited by photon diffusion. To break the diffusion limit and achieve high-resolution and deep-tissue fluorescence imaging, a fundamentally different method was demonstrated based on a concept of ultrasound-switchable fluorescence. The results showed that a small fluorescent tube with a diameter of 180 lm at a depth of 20mm in an optical scattering medium (l0 s 3:2 and la 0:026 cm 1) can be clearly imaged with a size of 260 lm. The depth-to-resolution ratio is shown to be about one order of magnitude better than other deep-tissue fluorescence imaging techniques.

Disciplines

Biomedical Engineering and Bioengineering | Engineering

Publication Date

1-1-2012

Language

English

Available for download on Wednesday, January 01, 3000

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