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Related Experiment Video

Updated: Aug 26, 2025

Microfabrication of Implantable Optics Integrated in a Microstructured Imaging Window for Advanced In Vivo Imaging
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Genetic algorithm-powered non-sequential dwell time optimization for large optics fabrication.

Hyukmo Kang, Tianyi Wang, Heejoo Choi

    Optics Express
    |October 12, 2022
    PubMed
    Summary
    This summary is machine-generated.

    A new GEnetic Algorithm-powered Non-Sequential (GEANS) optimization technique significantly enhances Computer Controlled Optical Surfacing (CCOS) for large optics. GEANS improves dwell time map generation, offering over 1000x computational efficiency and stable error performance.

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    Area of Science:

    • Optical engineering
    • Manufacturing technology
    • Computational physics

    Background:

    • Computer Controlled Optical Surfacing (CCOS) is crucial for fabricating large aspheric optical surfaces.
    • Sequential use of various polishing tool sizes necessitates efficient, globally optimized dwell time maps for each tool.

    Purpose of the Study:

    • To introduce a novel GEnetic Algorithm-powered Non-Sequential (GEANS) optimization technique.
    • To enhance the efficiency and feasibility of conventional non-sequential optimization methods in CCOS.

    Main Methods:

    • GEANS combines an influence matrix with constrained adjacent dwell points and a genetic algorithm for dwell time map generation.
    • The technique was validated through CCOS simulations and error analyses, including random tool positioning and influence function errors.

    Main Results:

    • GEANS produced a superior dwell time map, achieving high figuring efficiency and structural similarity to the target removal map.
    • Computational efficiency was improved over 1000 times compared to conventional non-sequential optimization.
    • Residual surface errors showed stable power spectral density values, and GEANS demonstrated superior applicability under maximum tool acceleration.

    Conclusions:

    • GEANS offers a practical and highly efficient solution for dwell time map optimization in CCOS for large optics.
    • The method provides robust performance against various errors, making it suitable for demanding optical fabrication applications.