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Related Experiment Video

Updated: Jun 13, 2026

Convergent Polishing: A Simple, Rapid, Full Aperture Polishing Process of High Quality Optical Flats & Spheres
13:07

Convergent Polishing: A Simple, Rapid, Full Aperture Polishing Process of High Quality Optical Flats & Spheres

Published on: December 1, 2014

Float polishing of optical materials.

J M Bennett, J J Shaffer, Y Shibano

    Applied Optics
    |May 11, 2010
    PubMed
    Summary
    This summary is machine-generated.

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    Float-polishing can create supersmooth optical surfaces with roughness under 2 angstroms. This technique proved effective for fused quartz, Zerodur, and sapphire, achieving sub-angstrom roughness on sapphire.

    Area of Science:

    • Materials Science
    • Optical Engineering
    • Surface Science

    Background:

    • Achieving supersmooth surfaces is critical for advanced optical applications.
    • Traditional polishing methods face limitations in reaching atomic-level smoothness.

    Purpose of the Study:

    • To evaluate the efficacy of float-polishing for creating ultrasmooth surfaces on diverse optical materials.
    • To determine the achievable surface roughness using this technique.

    Main Methods:

    • The float-polishing technique was applied to six different optical materials.
    • Surface roughness was measured using atomic force microscopy (AFM) or similar high-resolution techniques.

    Main Results:

    • Supersmooth surfaces with roughness <2 angstroms root mean square (rms) were achieved.

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    Last Updated: Jun 13, 2026

    Convergent Polishing: A Simple, Rapid, Full Aperture Polishing Process of High Quality Optical Flats &amp; Spheres
    13:07

    Convergent Polishing: A Simple, Rapid, Full Aperture Polishing Process of High Quality Optical Flats & Spheres

    Published on: December 1, 2014

    Microwave Photonics Systems Based on Whispering-gallery-mode Resonators
    12:18

    Microwave Photonics Systems Based on Whispering-gallery-mode Resonators

    Published on: August 5, 2013

  • Excellent results (<1 angstrom rms) were obtained on O-cut single-crystal sapphire.
  • Satisfactory results were achieved on fused quartz, Zerodur, and experimental glass-ceramics.

    • Conclusions:

    • Float-polishing is a viable technique for producing supersmooth optical surfaces.
    • Material properties and experimental setup (e.g., sample mounting) influence polishing outcomes.
    • Further optimization may enable satisfactory polishing of materials like CerVit and ULE quartz.