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- Title
STED microscopy with continuous wave beams.
- Authors
Willig, Katrin I; Harke, Benjamin; Medda, Rebecca; Hell, Stefan W
- 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.
- Publication
Nature methods, 2007, Vol 4, Issue 11, p915
- ISSN
1548-7091
- Publication type
Journal Article
- DOI
10.1038/nmeth1108