STED microscopy with continuous wave beams
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- 21 October 2007
- journal article
- Published by Springer Nature in Nature Methods
- Vol. 4 (11) , 915-918
- https://doi.org/10.1038/nmeth1108
Abstract
We report stimulated emission depletion (STED) fluorescence microscopy with continuous wave (CW) laser beams. Lateral fluorescence confinement from the scanning focal spot delivered a resolution of 29-60 nm in the focal plane, corresponding to a 5-8-fold improvement over the diffraction barrier. Axial spot confinement increased the axial resolution by 3.5-fold. We observed three-dimensional (3D) subdiffraction resolution in 3D image stacks. Viable for fluorophores with low triplet yield, the use of CW light sources greatly simplifies the implementation of this concept of far-field fluorescence nanoscopy.Keywords
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