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Updated: May 11, 2026

Quantitative Atomic-Site Analysis of Functional Dopants/Point Defects in Crystalline Materials by Electron-Channeling-Enhanced Microanalysis
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Comprehensive nanostructure and defect analysis using a simple 3D light-scatter sensor.

Tobias Herffurth1, Sven Schröder, Marcus Trost

  • 1Fraunhofer Institute for Applied Optics and Precision Engineering IOF, Albert-Einstein-Strasse 7, Jena 07745, Germany. tobias.herffurth@iof.fraunhofer.de

Applied Optics
|May 15, 2013
PubMed
Summary
This summary is machine-generated.

A new 3D scatter measurement system characterizes surfaces and nanostructures. It analyzes scattering origins and defects, comparing results with interferometry for comprehensive surface analysis.

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Area of Science:

  • Optical engineering and surface metrology.
  • Advanced characterization of optical and non-optical surfaces.

Background:

  • Light scattering is crucial for understanding surface properties.
  • Existing methods may not fully capture complex scattering phenomena or nanostructures.

Purpose of the Study:

  • To introduce a novel 3D scatter measurement system utilizing a detector matrix.
  • To characterize surface nanostructures and identify anisotropic scattering origins.
  • To compare scatter sensor results with white light interferometry for defect and roughness analysis.

Main Methods:

  • Development of a new 3D scatter measurement system with a detector matrix.
  • Utilizing a compact light-scatter sensor for detailed surface analysis.
  • Comparison of scattering data with white light interferometry measurements.
  • Modeling surface defect scattering using Kirchhoff integral and Beckmann approaches.

Main Results:

  • The system effectively characterizes surface scattering and nanostructures.
  • Origins of anisotropic scattering features were identified.
  • Direct comparison with white light interferometry validated defect and roughness analysis.
  • Scattering from surface defects was successfully modeled.

Conclusions:

  • The presented 3D scatter measurement system offers a powerful tool for surface characterization.
  • The integration with interferometry enhances the analysis of surface defects and roughness.
  • The developed models provide insight into scattering behavior from surface imperfections.