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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,...
Total Internal Reflection Fluorescence Microscopy01:05

Total Internal Reflection Fluorescence Microscopy

Total internal reflection fluorescence microscopy or TIRF is an advanced microscopic technique used to visualize fluorophores in samples close to a solid surface with a higher refractive index, such as a glass coverslip. TIRF only allows fluorophores in proximity to the solid surface to be excited. When light from a medium with a lower refractive index (such as air) hits the glass coverslip at a critical angle, the light undergoes total internal reflection stead of passing through the glass.

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Related Experiment Video

Updated: Jun 12, 2026

Confocal Imaging of Confined Quiescent and Flowing Colloid-polymer Mixtures
10:56

Confocal Imaging of Confined Quiescent and Flowing Colloid-polymer Mixtures

Published on: May 20, 2014

Solidification studies using a confocal optical signal processor.

M H McCay, T D McCay, L M Smith

    Applied Optics
    |June 18, 2010
    PubMed
    Summary
    This summary is machine-generated.

    A novel confocal optical processing system was developed to measure temperature and concentration in solidifying metals. Experimental results closely matched numerical simulations, validating the system for materials science research.

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    Area of Science:

    • Materials Science
    • Optical Engineering
    • Thermodynamics

    Background:

    • Accurate measurement of temperature and concentration profiles is crucial for understanding solidification processes in metals.
    • Traditional methods may lack the spatial resolution or non-invasive capabilities required for dynamic solidification studies.

    Purpose of the Study:

    • To develop and apply a confocal optical processing system for in-situ quantitative analysis of solidifying metal models.
    • To validate the system's performance by comparing experimental data with numerical simulations.

    Main Methods:

    • Development of a custom confocal optical processing system.
    • Acquisition of image format data from a solidifying metal model.
    • Quantitative measurement of temperature and concentration profiles using the acquired data.
    • Comparison of experimental results with numerical simulations.

    Main Results:

    • The confocal optical processing system successfully acquired quantitative temperature and concentration profiles.
    • Experimental data demonstrated strong agreement with predictions from numerical simulations.
    • The system provides a viable method for real-time analysis of metal solidification.

    Conclusions:

    • The developed confocal optical processing system is effective for quantitative analysis of solidifying metals.
    • The strong correlation between experimental and simulated results validates the system's accuracy and utility.
    • This technology offers a powerful tool for advancing research in materials processing and solidification science.