Cited by 238Advanced Fluorescence Microscopy TechniquesLaser-Matter Interactions and ApplicationsNonlinear Optical Materials Studies

Two-photon excitation STED microscopy

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Moneron, Gael, Hell, Stefan W.·2009·Optics Express

Abstract

We report sub-diffraction resolution in two-photon excitation (TPE) fluorescence microscopy achieved by merging this technique with stimulated-emission depletion (STED). We demonstrate an easy-to-implement and promising laser combination based on a short-pulse laser source for two-photon excitation and a continuous-wave (CW) laser source for resolution enhancement. Images of fluorescent nanoparticles and the immunostained transcription regulator NF kappaB in mammalian cell nuclei exhibit resolutions of <50 nm and approximately 70 nm in the focal plane, respectively, corresponding to a 4-5.4-fold improvement over the diffraction barrier.

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Crossref · 10.1364/oe.17.014567

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21 of 21 references verified0 citation errors · 0 not checkable

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Authors
Moneron, G., & Hell, S. W.
Venue
Optics Express
Published
2009-08-03
Volume
17
Issue
17
Pages
14567
ISSN
1094-4087 (ISSN-L)
OpenAlex
W2152298085
Cited by
238
References
21
Citations by year
2026: 7 · 2025: 4 · 2024: 6 · 2023: 10 · 2022: 11 · 2021: 11 · 2020: 12 · 2019: 15 · 2018: 19 · 2017: 18 · 2016: 15 · 2015: 18 · 2014: 25 · 2013: 18 · 2012: 18
FWCI
9.49
Type
journal article
Language
en
Open access
Locations
  • Optics Express (publishedVersion)
  • PubMed (publishedVersion)
  • Max Planck Institute for Plasma Physics (submittedVersion)
  • GRO (submittedVersion)
  • MPG.PuRe (Max Planck Society) (submittedVersion)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Biophysics › Advanced Fluorescence Microscopy Techniques
  • Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Laser-Matter Interactions and Applications
  • Physical Sciences › Engineering › Biomedical Engineering › Nonlinear Optical Materials Studies
Keywords
two-photon excitation, STED microscopy, stimulated emission depletion, sub-diffraction resolution, super-resolution fluorescence microscopy, short-pulse lasers, continuous-wave laser, fluorescent nanoparticles, NF-κB, immunostaining
MeSH terms
Animals, Cell Nucleus, Fluorescent Dyes, Humans, Lasers, Microscopy, Electron, Scanning, Microscopy, Fluorescence, Models, Statistical, NF-kappa B, Photons, Microscopy, Confocal, Imaging, Three-Dimensional, Nanotechnology, Nanoparticles

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