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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: Jun 8, 2026

Direct Imaging of Laser-driven Ultrafast Molecular Rotation
10:52

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Published on: February 4, 2017

Double slit with continuously variable width and center-to-center separation.

H K Pak, S H Park

    Applied Optics
    |September 11, 2010
    PubMed
    Summary

    Researchers developed a novel double-slit apparatus using linear polarizers and a half-wave plate. This setup allows for continuous adjustment of slit width and separation, enabling new optical experiments.

    Area of Science:

    • Optics and Photonics
    • Experimental Physics

    Background:

    • Double-slit experiments are fundamental in demonstrating wave-particle duality.
    • Traditional double-slit setups often have fixed parameters, limiting experimental flexibility.

    Purpose of the Study:

    • To create a versatile double-slit apparatus with continuously adjustable parameters.
    • To facilitate novel investigations in optical interference and diffraction.

    Main Methods:

    • Utilized linear polarizers to control light polarization.
    • Incorporated a half-wave plate for polarization manipulation.
    • Designed a mechanical system for continuous adjustment of slit width and center-to-center separation.

    Main Results:

    • Successfully constructed a double-slit with continuously variable width.

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  • Achieved continuous variability in the center-to-center separation of the slits.
  • Demonstrated the functionality of the adjustable double-slit in optical experiments.

    • Conclusions:

    • The developed apparatus offers unprecedented flexibility for optical experiments.
    • This tunable double-slit is a valuable tool for research and education in wave optics.