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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.
Raman Spectroscopy: Overview01:20

Raman Spectroscopy: Overview

The underlying principle of Raman spectroscopy is based on the interaction between light and matter, specifically molecules' inelastic scattering of photons. When a monochromatic beam of light, typically from a laser source, interacts with a sample, most scattered light has the same frequency as the incident light. This is known as Rayleigh scattering.
However, a small fraction of the scattered light exhibits a frequency shift due to the exchange of energy between the incident photons and the...
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: Jul 3, 2026

Implementation of a Nonlinear Microscope Based on Stimulated Raman Scattering
09:13

Implementation of a Nonlinear Microscope Based on Stimulated Raman Scattering

Published on: July 6, 2019

Enhancing resolution of stimulated Raman scattering microscopy.

Jun Liu, Yan Liu, Xiaolong Su

    Optics Express
    |July 2, 2026
    PubMed
    Summary
    This summary is machine-generated.

    This study introduces a super-resolution stimulated Raman scattering (SRS) microscopy technique. By combining antiphase demodulation and deconvolution, it significantly enhances imaging resolution for label-free biological applications.

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    Last Updated: Jul 3, 2026

    Implementation of a Nonlinear Microscope Based on Stimulated Raman Scattering
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    Published on: July 6, 2019

    Direct Comparison of Hyperspectral Stimulated Raman Scattering and Coherent Anti-Stokes Raman Scattering Microscopy for Chemical Imaging
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    Multiplex Chemical Imaging Based on Broadband Stimulated Raman Scattering Microscopy

    Published on: July 25, 2022

    Area of Science:

    • Biomedical Imaging
    • Optical Microscopy
    • Spectroscopy

    Background:

    • Stimulated Raman scattering (SRS) microscopy offers rapid, label-free biological imaging with molecular specificity.
    • Enhancing spatial resolution beyond the optical diffraction limit is crucial for detailed SRS applications.

    Purpose of the Study:

    • To develop a super-resolution technique for SRS microscopy.
    • To improve the spatial resolution of SRS imaging without causing significant sample damage.

    Main Methods:

    • Implementation of antiphase demodulation using a donut-shaped pump beam in SRS microscopy.
    • Application of a deconvolution algorithm following the modified SRS imaging process.

    Main Results:

    • Effective suppression of the signal around the focal center was achieved.
    • A 3.5-fold improvement in spatial resolution was demonstrated using human hair as a specimen.
    • The method enables sub-diffraction-limited imaging.

    Conclusions:

    • The developed method provides a practical approach for achieving super-resolution in SRS microscopy.
    • This technique broadens the scope of label-free, super-resolution biological imaging.