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Related Experiment Video

Updated: Jun 22, 2026

Fabrication of Silica Ultra High Quality Factor Microresonators
07:51

Fabrication of Silica Ultra High Quality Factor Microresonators

Published on: July 2, 2012

Ultra-High Q/V Fabry-Perot microcavity on SOI substrate.

P Velha, E Picard, T Charvolin

    Optics Express
    |June 25, 2009
    PubMed
    Summary

    Researchers created a high-performance nanocavity on a silicon-on-insulator substrate, achieving a record quality factor over modal volume (Q/V) ratio of 10^5. This breakthrough in photonic devices paves the way for future advancements in optical technologies.

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    Area of Science:

    • Photonics
    • Nanotechnology
    • Materials Science

    Background:

    • High-Q/V nanocavities are essential for advanced photonic devices.
    • Existing designs often face limitations due to substrate interactions or fabrication challenges.

    Purpose of the Study:

    • To experimentally demonstrate an ultra-high Q/V nanocavity on a silicon-on-insulator (SOI) substrate.
    • To validate theoretical predictions for nanocavity performance.
    • To explore pathways for further enhancing Q/V ratios.

    Main Methods:

    • Cavity design based on modal adaptation.
    • Experimental measurement of quality factor (Q) and modal volume (V).
    • Comparison of experimental results with theoretical models.

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

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    Related Experiment Videos

    Last Updated: Jun 22, 2026

    Fabrication of Silica Ultra High Quality Factor Microresonators
    07:51

    Fabrication of Silica Ultra High Quality Factor Microresonators

    Published on: July 2, 2012

    Implementation of a Reference Interferometer for Nanodetection
    16:11

    Implementation of a Reference Interferometer for Nanodetection

    Published on: April 26, 2014

    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

    Main Results:

    • Achieved an ultra-high Q/V ratio of 10^5.
    • Measured a quality factor of 58,000 with a modal volume of 0.6 (lambda/n)^3.
    • Demonstrated a record Q/V for a substrate-supported structure, matching theoretical predictions.

    Conclusions:

    • The demonstrated nanocavity design represents a significant advancement in photonic device performance.
    • Further design refinements could potentially achieve Q/V ratios approaching 10^6.
    • The results validate the modal adaptation approach for high-performance nanocavities on SOI substrates.