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Related Concept Videos

Focusing of Light in the Eye01:16

Focusing of Light in the Eye

Light rays enter the eye through the cornea, a transparent dome-shaped tissue that is the eye's outermost layer. The cornea bends or refracts, light rays traveling to the pupil. The shape of the cornea determines how much of the light is bent and whether the image will be focused correctly on the retina at the back of the eye. Once the light has passed through both refraction layers, it converges into a single focal point onto a small area. This is where photoreceptors start transforming...
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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,...
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

Free-form Light Actuators — Fabrication and Control of Actuation in Microscopic Scale
08:17

Free-form Light Actuators — Fabrication and Control of Actuation in Microscopic Scale

Published on: May 25, 2016

New light-focusing fibers made by a continuous process.

K Koizumi, Y Ikeda, I Kitano

    Applied Optics
    |February 4, 2010
    PubMed
    Summary
    This summary is machine-generated.

    A novel continuous manufacturing process for light-focusing glass fibers was developed. This innovation enables the creation of low-loss optical fibers with high transmission capacity, suitable for advanced communication systems.

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    Area of Science:

    • Materials Science
    • Optical Engineering
    • Chemical Engineering

    Background:

    • Development of advanced optical fibers is crucial for high-speed data transmission.
    • Existing manufacturing processes face limitations in achieving both low loss and high capacity.

    Purpose of the Study:

    • To introduce a new continuous manufacturing process for light-focusing glass fibers.
    • To fabricate high-performance optical fibers with reduced transmission loss and increased capacity.

    Main Methods:

    • Utilized fast ion-exchange in a special double crucible for continuous fiber production.
    • Employed an improved raw powder refinement technique and clean melting for bulk glass preparation.

    Main Results:

    • Successfully fabricated new low-loss optical fibers.
    • Achieved transmission loss of 20 dB/km at 0.81-0.85 microm wavelengths.
    • Demonstrated transmission capacity exceeding a few Gbit/sec over 1 km.

    Conclusions:

    • The new continuous manufacturing process is effective for producing high-quality optical fibers.
    • The fabricated fibers meet demanding specifications for telecommunications and data transfer.
    • This advancement contributes to the next generation of optical communication technologies.