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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,...
Phase Contrast and Differential Interference Contrast Microscopy01:26

Phase Contrast and Differential Interference Contrast Microscopy

Phase-Contrast Microscopes
In-phase-contrast microscopes, interference between light directly passing through a cell and light refracted by cellular components is used to create high-contrast, high-resolution images without staining. It is the oldest and simplest type of microscope that creates an image by altering the wavelengths of light rays passing through the specimen. Altered wavelength paths are created using an annular stop in the condenser. The annular stop produces a hollow cone of...
Three-Dimensional Microscopy in Microbiology01:28

Three-Dimensional Microscopy in Microbiology

Three-dimensional imaging techniques are essential in cell biology, allowing researchers to visualize intricate cellular structures with high resolution. Two prominent methods, Differential Interference Contrast Microscopy (DIC) and Confocal Scanning Laser Microscopy (CSLM), provide distinct advantages for imaging live and thick specimens, respectively.Differential Interference Contrast MicroscopyDIC microscopy enhances contrast in transparent, unstained samples by converting phase...
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: Jun 16, 2026

Simultaneous Interference Reflection and Total Internal Reflection Fluorescence Microscopy for Imaging Dynamic Microtubules and Associated Proteins
06:43

Simultaneous Interference Reflection and Total Internal Reflection Fluorescence Microscopy for Imaging Dynamic Microtubules and Associated Proteins

Published on: May 3, 2022

Instantaneous Spatial Light Interference Microscopy.

Huafeng Ding1, Gabriel Popescu

  • 1Quantitative Light Imaging Laboratory, Department of Electrical and Computer Engineering, Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA.

Optics Express
|February 23, 2010
PubMed
Summary
This summary is machine-generated.

Instantaneous Spatial Light Interference Microscopy (iSLIM) offers advanced quantitative phase imaging. This white light technique reduces speckle and enables multimodal and spectroscopic analysis for biological samples.

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Last Updated: Jun 16, 2026

Simultaneous Interference Reflection and Total Internal Reflection Fluorescence Microscopy for Imaging Dynamic Microtubules and Associated Proteins
06:43

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Published on: May 3, 2022

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10:07

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Published on: April 9, 2014

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08:53

Single Plane Illumination Module and Micro-capillary Approach for a Wide-field Microscope

Published on: August 15, 2014

Area of Science:

  • Biophotonics
  • Microscopy
  • Quantitative Phase Imaging

Background:

  • Traditional phase contrast microscopy suffers from speckle noise.
  • Diffraction phase microscopy offers phase stability but lacks white light benefits.
  • Quantitative phase imaging is crucial for label-free cell analysis.

Purpose of the Study:

  • Introduce Instantaneous Spatial Light Interference Microscopy (iSLIM) as a novel quantitative phase imaging method.
  • Combine advantages of white light illumination and phase stability.
  • Enhance multimodal and spectroscopic capabilities in microscopy.

Main Methods:

  • Implemented iSLIM as an add-on module to a commercial phase contrast microscope.
  • Utilized white light illumination for reduced speckle effects.
  • Integrated with other microscopy modalities like fluorescence and DIC.

Main Results:

  • Demonstrated multicolor phase imaging of microspheres and red blood cells.
  • Achieved dynamic imaging of nanoscale cell membrane fluctuations.
  • Showcased diminished speckle effects and multimodal investigation potential.

Conclusions:

  • iSLIM provides a versatile platform for advanced quantitative phase imaging.
  • The technique offers enhanced capabilities for biological sample analysis.
  • iSLIM opens new avenues for spectroscopic and multimodal microscopy investigations.