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Related Concept Videos

Confocal Fluorescence Microscopy01:16

Confocal Fluorescence Microscopy

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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: Jul 31, 2025

Image-guided, Laser-based Fabrication of Vascular-derived Microfluidic Networks
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Non-defocus high transmittance image slicer.

Ruyi Wei, Bin Liu, Zhengmao Xie

    Optics Express
    |May 9, 2023
    PubMed
    Summary

    A novel optical path compensation method using a stepped prism plate eliminates defocus in high-transmittance image slicers. This breakthrough significantly reduces image blur, enhancing performance for spectrometers.

    Area of Science:

    • Optics
    • Spectroscopy
    • Optical Engineering

    Background:

    • Traditional image slicers often suffer from image blur due to defocus between sub-images.
    • This defocus issue limits the resolution and performance of spectroscopic instruments.

    Purpose of the Study:

    • To develop the first non-defocus, high-transmittance image slicer.
    • To address and mitigate image blur in sliced sub-images using optical path compensation.

    Main Methods:

    • Proposed an optical path compensation method utilizing a stepped prism plate.
    • Designed and simulated the performance of the novel image slicer.

    Main Results:

    • Maximal defocus between four sliced sub-images reduced from 2.363 mm to near 0.

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  • Dispersion spot diameter on the focal plane reduced from 98.47 μm to near 0.
  • Achieved a high optical transmittance of up to 91.89%.

    • Conclusions:

    • The developed non-defocus image slicer effectively eliminates image blur.
    • This technology offers significant value for high-resolution and high-transmittance spectrometer applications.