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A Multimodal Wide-Field Fourier-Transform Raman Microscope
Published on: December 30, 2025
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Orientation-distribution mapping of polycrystalline materials by Raman microspectroscopy
T Schmid1, N Schäfer2, S Levcenko2
1Federal Institute for Materials Research and Testing, Richard-Willstätter-Str. 11, 12489 Berlin, Germany.
Scientific Reports
|December 18, 2015
Summary
Raman microspectroscopy can now map grain orientations in polycrystalline materials at the submicrometer level. This technique offers quantitative microstructural analysis for materials science applications.
Area of Science:
- Materials Science
- Solid State Physics
- Analytical Chemistry
Background:
- Polycrystalline materials characterization requires precise orientation mapping.
- Submicrometer resolution is crucial for understanding material properties.
- Raman microspectroscopy offers chemical and structural information.
Purpose of the Study:
- To demonstrate orientation-distribution mapping using Raman microspectroscopy.
- To validate Raman-based orientation mapping with electron backscatter diffraction (EBSD).
- To establish Raman microspectroscopy as a tool for quantitative microstructural analysis.
Main Methods:
- Acquisition of orientation-distribution maps via Raman intensity distributions.
- Utilizing a polycrystalline CuInSe2 thin film as a model system.
- Correlating Raman data with electron backscatter diffraction (EBSD) measurements.
Main Results:
- Successful acquisition of orientation-distribution maps over large areas (hundreds of square micrometers).
- Quantitative local orientation information obtained via EBSD.
- Calculated theoretical Raman intensities aligned well with experimental values.
Conclusions:
- Raman microspectroscopy can provide quantitative, submicrometer-level orientation mapping.
- The developed approach enhances microstructural analysis capabilities.
- This method opens new avenues for materials characterization.
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