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Fabrication of Silica Ultra High Quality Factor Microresonators
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Ultrahigh quality factor in a metal-embedded semiconductor microdisk cavity.

Hiroyuki Kurosawa, Hidekazu Kumano, Ikuo Suemune

    Optics Letters
    |December 17, 2015
    PubMed
    Summary

    We optimized metal-embedded semiconductor microdisk cavities for high Q factors, reaching 1,700,000. This advancement makes these cavities promising for cavity quantum electrodynamics (QED) devices.

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    Area of Science:

    • Physics
    • Quantum Optics
    • Materials Science

    Background:

    • Semiconductor microdisk cavities are crucial for photonics.
    • Achieving high quality (Q) factors is essential for advanced optical devices.
    • Metal-embedding offers a novel approach to cavity design.

    Purpose of the Study:

    • To investigate the electrodynamics of metal-embedded semiconductor microdisk cavities.
    • To understand the quantum mechanical conditions for achieving high Q factors.
    • To optimize cavity structure for enhanced performance.

    Main Methods:

    • Numerical simulations of cavity electrodynamics.
    • Theoretical analysis based on quantum mechanics.
    • Structural optimization of the microdisk cavity.

    Main Results:

    • Identified quantum mechanical conditions for high Q factors.
    • Optimized cavity structure through numerical calculations.
    • Achieved a Q factor of up to 1,700,000.

    Conclusions:

    • Metal-embedded cavities provide a pathway to ultra-high Q factors.
    • The optimized cavities are suitable for cavity quantum electrodynamics (QED) applications.
    • This research paves the way for next-generation QED devices.