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Related Concept Videos

Meiosis I01:49

Meiosis I

Meiosis is a carefully orchestrated set of cell divisions, the goal of which—in humans—is to produce haploid sperm or eggs, each containing half the number of chromosomes present in somatic cells elsewhere in the body. Meiosis I is the first such division, and involves several key steps, among them: condensation of replicated chromosomes in diploid cells; the pairing of homologous chromosomes and their exchange of information; and finally, the separation of homologous chromosomes by a...
Centrosome Duplication02:25

Centrosome Duplication

The primary microtubule organizing center (MTOC) in animal cells is the centrosome. A centrosome has two cylindrical centrioles at its core. Each centriole consists of nine sets of three microtubules held together by proteins. The centrioles are positioned at right angles to each other and surrounded by a shapeless protein cloud called the pericentriolar matrix, or pericentriolar material (PCM).
To ensure that each daughter cell receives a centrosome after cell division, centrosome duplication...
Meiosis I03:09

Meiosis I

Meiosis is the division of a diploid cell into haploid cells forming sperm and eggs in animals through differentiation. Meiosis I is the first stage of meiosis, where the genetic recombination of homologous chromosomes and the reduction of the ploidy level by half occurs.
Prophase I is the most extended and complex step of meiosis I characterized by synapsis, chromosome pairing, and recombination of the homologous chromosomes. This process is facilitated by a proteinaceous structure called the...
Imaging Biological Samples with Optical Microscopy01:18

Imaging Biological Samples with Optical Microscopy

Optical microscopy uses optic principles to provide detailed images of samples. Antonie van Leeuwenhoek designed the first compound optical microscope in the 17th century to visualize blood cells, bacteria, and yeast cells. In 1830, Joseph Jackson Lister created an essentially modern light microscope. The 20th century saw the development of microscopes with enhanced magnification and resolution.
In optical microscopy, the specimen to be viewed is placed on a glass slide and clipped on the stage...
Centrosome Duplication02:25

Centrosome Duplication

The primary microtubule organizing center (MTOC) in animal cells is the centrosome. A centrosome has two cylindrical centrioles at its core. Each centriole consists of nine sets of three microtubules held together by proteins. The centrioles are positioned at right angles to each other and surrounded by a shapeless protein cloud called the pericentriolar matrix, or pericentriolar material (PCM).
To ensure that each daughter cell receives a centrosome after cell division, centrosome duplication...
Meiosis I03:09

Meiosis I

Meiosis is the division of a diploid cell into haploid cells forming sperm and eggs in animals through differentiation. Meiosis I is the first stage of meiosis, where the genetic recombination of homologous chromosomes and the reduction of the ploidy level by half occurs.
Prophase I is the most extended and complex step of meiosis I characterized by synapsis, chromosome pairing, and recombination of the homologous chromosomes. This process is facilitated by a proteinaceous structure called the...

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Related Experiment Video

Updated: Jul 24, 2026

Quasi-light Storage for Optical Data Packets
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Single-phase modulated optical skyrmions for information security applications.

Laxminarayan, Kushal Kumar Tripathi, Praveen Kumar

    Optics Express
    |December 19, 2025
    PubMed
    Summary

    Optical skyrmions, with their protected structure, are used for secure image encoding and encryption. This research demonstrates a compact system for generating versatile optical skyrmions for information science applications.

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    Area of Science:

    • Photonics
    • Information Science
    • Topological Photonics

    Background:

    • Optical skyrmions possess unique topological properties and protected structures.
    • These properties offer potential for advanced photonics applications like information storage and optical communication.

    Purpose of the Study:

    • To demonstrate the application of optical skyrmions in information science, specifically for image encoding, decoding, and encryption.
    • To develop a compact and robust system for generating versatile optical skyrmions.

    Main Methods:

    • Utilized a single spatial light modulator for polarization-selective modulation.
    • Employed optical fields with a non-zero radial index to generate skyrmions.
    • Developed experimental configurations for producing optical skyrmions in fundamental laser beams.

    Main Results:

    • Successfully generated versatile optical skyrmions using the proposed compact system.
    • Achieved high radial mode conversion effectiveness in fundamental laser beams.
    • Experimental and simulation results verified the system's feasibility for image encoding and encryption.

    Conclusions:

    • Optical skyrmions can be effectively applied to image encoding, decoding, and encryption.
    • The developed system provides a robust and compact method for generating versatile optical skyrmions.
    • This technique holds promise for secure information processing in advanced photonics.