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Related Experiment Video

Updated: Jun 22, 2026

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

Photonic crystal nanocavity array laser.

Hatice Altug, Jelena Vucković

    Optics Express
    |June 6, 2009
    PubMed
    Summary

    Researchers developed a novel laser using coupled photonic crystal nanocavities, achieving high efficiency and output power with a low threshold. This new laser design significantly outperforms single nanocavity lasers.

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    Area of Science:

    • Photonics
    • Laser Physics
    • Materials Science

    Background:

    • Photonic crystal nanocavities offer unique light-matter interaction properties.
    • Scaling laser performance often involves trade-offs between efficiency, threshold, and output power.
    • Coupled cavity systems present opportunities for enhanced optical functionalities.

    Purpose of the Study:

    • To demonstrate a new laser architecture based on coupled photonic crystal nanocavities.
    • To investigate the impact of cavity coupling on laser performance metrics.
    • To achieve high output power and efficiency while maintaining a low lasing threshold.

    Main Methods:

    • Fabrication of an array of coupled photonic crystal nanocavities.
    • Experimental characterization of laser threshold, differential quantum efficiency, and output power.
    • Theoretical modeling of coupled cavity laser behavior and cavity effects.

    Main Results:

    • The coupled nanocavity laser exhibited high differential quantum efficiency and output power.
    • Lasing threshold remained comparable to single photonic crystal cavity lasers.
    • Output powers were two orders of magnitude higher than single nanocavity lasers.
    • Single mode lasing was observed.
    • Laser efficiency increased with the number of coupled cavities.

    Conclusions:

    • Coupled photonic crystal nanocavities enable lasers with superior performance.
    • Enhanced spontaneous emission rates due to strong cavity effects are key to performance benefits.
    • This architecture offers a promising route for developing high-power, efficient lasers.

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    Related Experiment Videos

    Last Updated: Jun 22, 2026

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

    Published on: February 25, 2017

    Fabrication And Characterization Of Photonic Crystal Slow Light Waveguides And Cavities
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    Fabrication And Characterization Of Photonic Crystal Slow Light Waveguides And Cavities

    Published on: November 30, 2012

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    Trapping of Micro Particles in Nanoplasmonic Optical Lattice

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