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Related Concept Videos

Atomic Force Microscopy01:08

Atomic Force Microscopy

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Atomic force microscopy (AFM) is a type of scanning probe microscopy that can analyze topographic details of various specimens like ceramics, glass, polymers, and biological samples. AFM offers over 1000 times more resolution than the optical imaging system. Images generated from AFM are three-dimensional surface profiles, offering an advantage over the flat, two-dimensional images from other imaging techniques.
The AFM Probe
The probe is regarded as the heart of any AFM setup and comprises the...
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Updated: Dec 27, 2025

The Evolution of Silica Nanoparticle-polyester Coatings on Surfaces Exposed to Sunlight
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Single-shot freeform surface profiler.

Yong Bum Seo, Hyo Bin Jeong, Hyug-Gyo Rhee

    Optics Express
    |March 4, 2020
    PubMed
    Summary
    This summary is machine-generated.

    We present a simple single-shot freeform surface profiler using spatially phase-shifted lateral shearing interferometry. This novel method simplifies optical components and instantly captures 3D surface profiles.

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    Area of Science:

    • Optics and Photonics
    • Metrology
    • Surface Science

    Background:

    • Accurate 3D surface profiling is crucial for manufacturing and quality control.
    • Traditional interferometry methods can be complex and require bulky optical setups.
    • Freeform surfaces present unique challenges for metrology due to their arbitrary shapes.

    Purpose of the Study:

    • To introduce a novel, simple, and single-shot method for freeform surface profiler.
    • To leverage spatially phase-shifted lateral shearing interferometry for efficient 3D surface measurement.
    • To demonstrate the feasibility of the proposed method using birefringent materials and a pixelated polarizing camera.

    Main Methods:

    • Development of a single-shot freeform surface profiler.
    • Utilizing spatially phase-shifted lateral shearing interferometry.
    • Employing birefringent materials for simple generation of laterally shearing waves.
    • Instantaneous phase map acquisition using a pixelated polarizing camera.
    • Theoretical description and experimental verification.

    Main Results:

    • Successful implementation of a simple and compact freeform surface profiler.
    • Instantaneous 3D profile acquisition of freeform surfaces.
    • Demonstrated accuracy comparable to established stylus probe methods.
    • Elimination of bulky and complex optical components.

    Conclusions:

    • The proposed method offers a simple, efficient, and accurate solution for freeform surface profiling.
    • Birefringent materials and spatial phase-shifting significantly simplify the interferometric setup.
    • This technique provides a valuable tool for metrology applications requiring rapid and precise surface characterization.