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Related Concept Videos

Fabrication And Characterization Of Photonic Crystal Slow Light Waveguides And Cavities11:08

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Related Experiment Video

Updated: Jan 19, 2026

Fabrication And Characterization Of Photonic Crystal Slow Light Waveguides And Cavities
11:08

Fabrication And Characterization Of Photonic Crystal Slow Light Waveguides And Cavities

Published on: November 30, 2012

19.5K

All-optical half-subtractor based on photonic crystals.

Asghar Askarian, Gholamreza Akbarizadeh, Mehdi Fartash

    Applied Optics
    |September 11, 2019
    PubMed
    Summary

    Researchers developed a novel all-optical half-subtractor using a 2D photonic crystal. This device operates in the linear region, requiring low optical power and achieving a fast 2 ps delay time.

    Area of Science:

    • Photonics
    • Optical Computing
    • Nanotechnology

    Background:

    • All-optical computing offers high speed and low power consumption.
    • Photonic crystals provide unique light manipulation capabilities.
    • Implementing digital logic functions optically remains a challenge.

    Purpose of the Study:

    • To design and propose a novel all-optical half-subtractor.
    • To utilize a two-dimensional photonic crystal for optical logic operations.
    • To achieve low-power and high-speed optical computation.

    Main Methods:

    • Designing a two-dimensional photonic-crystal-based structure.
    • Combining phase shift keying (PSK) with optical beam interference.
    • Operating the device in the linear regime.

    More Related Videos

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    Fabrication of 1-D Photonic Crystal Cavity on a Nanofiber Using Femtosecond Laser-induced Ablation
    13:02

    Fabrication of 1-D Photonic Crystal Cavity on a Nanofiber Using Femtosecond Laser-induced Ablation

    Published on: February 25, 2017

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    Related Experiment Videos

    Last Updated: Jan 19, 2026

    Fabrication And Characterization Of Photonic Crystal Slow Light Waveguides And Cavities
    11:08

    Fabrication And Characterization Of Photonic Crystal Slow Light Waveguides And Cavities

    Published on: November 30, 2012

    19.5K
    Hyperspectral Imaging as a Tool to Study Optical Anisotropy in Lanthanide-Based Molecular Single Crystals
    07:24

    Hyperspectral Imaging as a Tool to Study Optical Anisotropy in Lanthanide-Based Molecular Single Crystals

    Published on: April 14, 2020

    18.5K
    Fabrication of 1-D Photonic Crystal Cavity on a Nanofiber Using Femtosecond Laser-induced Ablation
    13:02

    Fabrication of 1-D Photonic Crystal Cavity on a Nanofiber Using Femtosecond Laser-induced Ablation

    Published on: February 25, 2017

    10.1K

    Main Results:

    • Successfully designed an all-optical half-subtractor.
    • The structure operates in the linear region, minimizing power requirements.
    • Achieved a low delay time of approximately 2 picoseconds.

    Conclusions:

    • The proposed photonic crystal structure is a viable design for all-optical half-subtractors.
    • This approach enables low-power, high-speed optical logic operations.
    • Offers a promising pathway for advanced optical computing architectures.