Evidence map›Paper›PMID 10899992›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2000

Fluorescence microscopy with diffraction resolution barrier broken by stimulated emission.

T A Klar, S Jakobs, M Dyba, A Egner, S W Hell

Abstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2000. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 501 papers.

0numbers the graph read from it
0cells of the map it votes in
501citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

501 citing papers in PubMed.

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  5. A host-encoded prophage targets a Candidate Phyla Radiation bacterium and shapes episymbiotic interactions.Proceedings of the National Academy of Sciences of the United States of America · 2026
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  11. Combining ultrastructure expansion microscopy with immunofluorescence and Oligopaint DNA FISH.Chromosome research : an international journal on the molecular, supramolecular and evolutionary aspects of chromosome biology · 2026
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441 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

5 authors.

T A KlarMax-Planck-Institute for Biophysical Chemistry, High Resolution Optical Microscopy Group, 37070 Göttingen, Germany.
S Jakobs
M Dyba
A Egner
S W Hell

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The diffraction barrier responsible for a finite focal spot size and limited resolution in far-field fluorescence microscopy has been fundamentally broken. This is accomplished by quenching excited organic molecules at the rim of the focal spot through stimulated emission. Along the optic axis, the spot size was reduced by up to 6 times beyond the diffraction barrier. The simultaneous 2-fold improvement in the radial direction rendered a nearly spherical fluorescence spot with a diameter of 90-110 nm. The spot volume of down to 0.67 attoliters is 18 times smaller than that of confocal microscopy, thus making our results also relevant to three-dimensional photochemistry and single molecule spectroscopy. Images of live cells reveal greater details.

Indexed as

Escherichia coliFluorescent DyesMicroscopy, FluorescenceNonlinear DynamicsOrganic ChemicalsPyridinium CompoundsQuaternary Ammonium CompoundsSaccharomyces cerevisiae6-(Dimethylamino)-2-((1E,3E)-4-(4-(dimethylamino)phenyl)-1,3-butadien-1-yl)-1-ethylquinolinium perchlorateFluorescent DyesFM 4-64Organic ChemicalsPyridinium CompoundsQuaternary Ammonium CompoundsRH 414

Identifiers

PMID10899992
PMCPMC26924

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.