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Related Concept Videos

Atomic Force Microscopy01:08

Atomic Force Microscopy

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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The early pioneers of microscopy opened a window into the invisible world of microorganisms. In 1830, Joseph Jackson Lister created an essentially modern light microscope. The 20th century saw the development of microscopes that leveraged nonvisible light, such as fluorescence microscopy that uses an ultraviolet light source and electron microscopy that uses short-wavelength electron beams. These advances significantly improved magnification, image resolution, and contrast. By comparison, the...
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Related Experiment Video

Updated: Jun 8, 2026

Characterization of Surface Modifications by White Light Interferometry: Applications in Ion Sputtering, Laser Ablation, and Tribology Experiments
11:47

Characterization of Surface Modifications by White Light Interferometry: Applications in Ion Sputtering, Laser Ablation, and Tribology Experiments

Published on: February 27, 2013

High-speed noncontact profiler based on scanning white-light interferometry.

L Deck, P de Groot

    Applied Optics
    |October 14, 2010
    PubMed
    Summary
    This summary is machine-generated.

    This study introduces a fast 3D profilometry system using white-light scanning. It efficiently profiles smooth and rough surfaces, overcoming phase-ambiguity issues for accurate measurements.

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    Characterization of Surface Modifications by White Light Interferometry: Applications in Ion Sputtering, Laser Ablation, and Tribology Experiments
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    Published on: December 22, 2015

    Area of Science:

    • Optics and Photonics
    • Metrology
    • Surface Science

    Background:

    • Accurate surface profiling is crucial for various scientific and industrial applications.
    • Conventional phase-shifting techniques struggle with rough or discontinuous surfaces, leading to phase ambiguity.
    • Existing white-light scanning methods can be time-consuming in both data acquisition and analysis.

    Purpose of the Study:

    • To develop a rapid and versatile 3D profilometry system.
    • To address limitations of conventional techniques in profiling challenging surfaces.
    • To enhance the efficiency of surface measurement processes.

    Main Methods:

    • Implementation of a scanning white-light interferometry system.
    • Development of an efficient algorithm to isolate interference regions.
    • Application of the system to both optically smooth and rough surfaces.

    Main Results:

    • The system achieves fast 3D profilometry for diverse surface types.
    • An efficient algorithm significantly reduces acquisition and analysis times.
    • Phase-ambiguity issues are resolved for rough and discontinuous surfaces.
    • Measurements of steps up to 100 µm are demonstrated.
    • A 10 µm range is scanned in 5 seconds with 0.5 nm repeatability on smooth surfaces.

    Conclusions:

    • The developed system offers a fast and robust solution for 3D surface profiling.
    • It overcomes key limitations of existing profilometry methods, particularly for rough surfaces.
    • The system's speed, accuracy, and versatility make it suitable for advanced metrology applications.