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Ion beam interference coating for ultralow optical loss.

D T Wei

    Applied Optics
    |June 18, 2010
    PubMed
    Summary

    Ion beam interference coating (IBIC) offers ultra-low optical loss and high mechanical strength for optical thin films. This sputter-deposition technique has broad spectral applications and is detailed for fabrication and measurement.

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    Area of Science:

    • Materials Science
    • Optical Engineering
    • Thin Film Technology

    Background:

    • Ion beam interference coating (IBIC) is an advanced sputter-deposition technique.
    • It utilizes a Kaufman gun for fabricating multiple optical thin film layers.
    • IBIC has demonstrated potential for achieving extremely low optical loss and high mechanical strength.

    Purpose of the Study:

    • To describe the principles, fabrication, and optical measurement of IBIC.
    • To discuss the history and future outlook of IBIC technology.
    • To highlight methods for achieving low optical loss and improving throughput.

    Main Methods:

    • Sputter-deposition using a Kaufman gun.
    • Fabrication of multiple layers for optical thin films.
    • Optical measurements for characterizing film properties.

    Main Results:

    • Achieved coatings with extremely low optical loss.
    • Demonstrated high mechanical strength in the fabricated coatings.
    • Identified potential applications across a wide spectral range.

    Conclusions:

    • IBIC is a viable technique for high-performance optical thin films.
    • Further development can focus on low-loss optimization and throughput enhancement.
    • The technology holds promise for diverse spectral applications.

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