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4. Phase analysis and imaging
Raman imaging is now hyperspectral mapping; direct imaging by optical filtering to retain only the specific component(s) of a phase or parameter is no longer used . The Raman (or Rayleigh/Brillouin) image is obtained by constructing parameters/ranges from the spectrum acquired at each–mapping measurement point.
4.1 Topological analysis
The intensity of the collected signal depends on the amount of material in the spot volume (figure
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Phase analysis and imaging
Anharmonicity and Raman shift under stress: imaging stresses
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