TITLE

Superresolution imaging with optical fluctuation using speckle patterns illumination

AUTHOR(S)
Park, ChungHyun; Rodriguez, Christophe; Cho, Yong-Hoon; Kim, MinKwan; Park, YongKeun
PUB. DATE
November 2015
SOURCE
Scientific Reports;11/20/2015, p16525
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Superresolution fluorescence microscopy possesses an important role for the study of processes in biological cells with subdiffraction resolution. Recently, superresolution methods employing the emission properties of fluorophores have rapidly evolved due to their technical simplicity and direct applicability to existing microscopes. However, the application of these methods has been limited to samples labeled with fluorophores that can exhibit intrinsic emission properties at a restricted timescale, especially stochastic blinking. Here, we present a superresolution method that can be performed using general fluorophores, regardless of this intrinsic property. Utilizing speckle patterns illumination, temporal emission fluctuation of fluorophores is induced and controlled, from which a superresolution image can be obtained exploiting its statistical property. Using this method, we demonstrate, theoretically and experimentally, the capability to produce subdiffraction resolution images. A spatial resolution of 500 nm, 300 nm and 140 nm with 0.4, 0.5 and 1.4 NA objective lenses respectively was achieved in various samples with an enhancement factor of 1.6 compared to conventional fluorescence microscopy.
ACCESSION #
111130467

 

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