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Related Concept Videos

Confocal Fluorescence Microscopy01:16

Confocal Fluorescence Microscopy

Confocal microscopy is an advanced microscopic technique. The prime advantage of the confocal microscope over other microscopy techniques is its ability to block the out-of-focus light from the illuminated samples using pinholes. It is widely used with fluorescence optics to obtain high-resolution, sharp contrast images. Unlike optical microscopes, confocal microscopes use a focused beam of light laser to scan the entire sample surface at different z-planes. These microscopes are, therefore,...
Super-resolution Fluorescence Microscopy01:37

Super-resolution Fluorescence Microscopy

Super-resolution fluorescence microscopy (SRFM) provides a better resolution than conventional fluorescence microscopy by reducing the point spread function (PSF). PSF is the light intensity distribution from a point that causes it to appear blurred. Due to PSF, each fluorescing point appears bigger than its actual size, and it is the PSF interference of nearby fluorophores that causes the blurred image. Various approaches to achieving higher resolution through SRFM have recently been developed.

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Related Experiment Video

Updated: Jul 13, 2026

Super-Resolution Imaging and Shared Management: A Protocol for Confocal Microscopy with Multiplex Detection
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Super-Resolution Imaging and Shared Management: A Protocol for Confocal Microscopy with Multiplex Detection

Published on: February 24, 2026

Scattering suppression and confocal detection in multifocal multiphoton microscopy.

Jörg Martini1, Volker Andresen, Dario Anselmetti

  • 1Bielefeld University, Department of Physics, Experimental Biophysics and Applied Nanoscience, Universitätsstrasse 25, D-33615 Bielefeld, Germany. jmartini@physik.uni-bielefeld.de

Journal of Biomedical Optics
|July 7, 2007
PubMed
Summary

We developed a new multifocal multiphoton microscopy detector array to reduce blurring from scattered light. This improves photon detection and significantly enhances imaging resolution in biological samples.

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Last Updated: Jul 13, 2026

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Simultaneous Multicolor Imaging of Biological Structures with Fluorescence Photoactivation Localization Microscopy
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Simultaneous Multicolor Imaging of Biological Structures with Fluorescence Photoactivation Localization Microscopy

Published on: December 9, 2013

Area of Science:

  • Biophotonics
  • Microscopy
  • Optical Imaging

Background:

  • Scattered fluorescence photons blur images in multiphoton microscopy, especially in scattering biological tissues.
  • Existing single-beam non-descanned methods struggle with image quality in dense samples.

Purpose of the Study:

  • To develop and validate a novel descanned parallel pinhole and photomultiplier detection array for multifocal multiphoton microscopy.
  • To overcome image blurring caused by scattered photons in strongly scattering biological media.

Main Methods:

  • Implemented a 32-fold parallel descanned pinhole and photomultiplier detection array.
  • Utilized multifocal multiphoton microscopy for imaging.
  • Applied the technique to plant leaves and pollen grains.

Main Results:

  • Achieved a fourfold improvement in photon statistics for detecting ballistic photons.
  • Increased spatial resolution by 21% laterally and 35% axially compared to single-beam non-descanned methods.
  • Demonstrated enhanced imaging quality in plant leaves and pollen grains.

Conclusions:

  • The new detection array effectively reduces blurring from scattered light in multiphoton microscopy.
  • Significant improvements in photon statistics and spatial resolution were achieved.
  • Validated the technology for imaging challenging biological specimens.