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Super-resolution Fluorescence Microscopy

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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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: Jun 24, 2026

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

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

Published on: February 24, 2026

High-resolution mosaic imaging with multifocal, multiphoton photon-counting microscopy.

Eric Chandler¹, Erich Hoover, Jeff Field

¹Center for Microintegrated Optics for Advanced Biological Control, Department of Physics, Colorado School of Mines, 1500 Illinois Street, Golden, Colorado 80401, USA. echandle@mines.edu

|April 14, 2009

Summary

This summary is machine-generated.

This study introduces a novel multifocal, multiphoton, photon-counting imaging system for high-resolution mosaic imaging. The innovative design utilizes a custom laser and commercial microscope, enabling advanced imaging capabilities.

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Area of Science:

Optics and Photonics
Biomedical Imaging
Laser Technology

Background:

Advanced imaging techniques are crucial for detailed biological and material analysis.
Multiphoton microscopy offers deeper tissue penetration and reduced phototoxicity.
Photon-counting detectors provide enhanced sensitivity and quantitative data.

Purpose of the Study:

To develop and demonstrate a novel high-resolution mosaic imaging system.
To integrate multifocal multiphoton microscopy with photon-counting detection.
To showcase a cost-effective implementation using a home-built laser and commercial microscope.

Main Methods:

Construction of a femtosecond Ytterbium-doped KGdWO(4) laser system.
Integration of an optical multiplexer with a commercial Olympus IX-71 microscope.
Utilization of single-element photon-counting detectors with an electronic demultiplexer.

Main Results:

Successful implementation of high-resolution mosaic imaging using the novel system.
Demonstration of multifocal, multiphoton, photon-counting capabilities.
Achieved high-quality imaging with a cost-effective setup.

Conclusions:

The developed system represents a significant advancement in high-resolution imaging.
This approach enables new possibilities in quantitative and sensitive imaging applications.
The cost-effective design makes advanced imaging more accessible.