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Related Concept Videos

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.
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,...

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Related Experiment Video

Updated: May 9, 2026

Simultaneous Multicolor Imaging of Biological Structures with Fluorescence Photoactivation Localization Microscopy
12:51

Simultaneous Multicolor Imaging of Biological Structures with Fluorescence Photoactivation Localization Microscopy

Published on: December 9, 2013

Multifocal multiphoton microscopy based on a spatial light modulator.

Y Shao1, W Qin, H Liu

  • 1College of Optoelectronic Engineering, Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, Shenzhen University, Shenzhen 518060, China.

Applied Physics. B, Lasers and Optics
|July 30, 2013
PubMed
Summary
This summary is machine-generated.

We developed a novel multifocal multiphoton microscope. This advanced imaging system allows dynamic control over focus arrays for versatile biological sample exploration without hardware modifications.

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Last Updated: May 9, 2026

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Area of Science:

  • Microscopy
  • Optical Imaging
  • Biophotonics

Background:

  • Multiphoton microscopy offers deep tissue penetration and reduced phototoxicity.
  • Current multifocal microscopy techniques often require hardware adjustments for different imaging needs.

Purpose of the Study:

  • To introduce a new multifocal multiphoton microscope.
  • To demonstrate dynamic control over multifocal arrays without hardware changes.

Main Methods:

  • Utilizing a programmable spatial light modulator (SLM) to generate dynamic multifocus arrays.
  • Employing galvo scanners to rapidly steer the laser beam and scan the focal array.
  • Adjusting the number, density, location, and shape of focal points via SLM control.

Main Results:

  • The microscope successfully generated dynamic multifocus arrays.
  • Rapid scanning and selection of focal point configurations were achieved.
  • Flexibility in adapting array parameters to specific regions of interest was demonstrated.

Conclusions:

  • The developed microscope provides a versatile and hardware-independent platform for multifocal multiphoton imaging.
  • This technology enables rapid optimization of imaging parameters for diverse biological applications.
  • The system enhances efficiency and adaptability in advanced optical microscopy.