Confocal Raman imaging is a non-destructive imaging technique and can therefore be combined with other techniques.
By investigating a sample with different imaging techniques the diverse information contained within the results contribute to a more comprehensive sample analysis. Furthermore the advantages of both imaging techniques can be combined to increase resolution.
Here are some examples of common Raman combinations:
Raman and AFM
By combining confocal Raman imaging with AFM, the chemical properties of the sample can be easily linked with the surface structure and mechanical properties. These two complementary techniques are available in combined Raman-AFM microscopes for more flexible and comprehensive sample characterization.
Raman and SNOM
Combining Raman with SNOM (Scanning Near-field Optical Microscopy) links chemical characterization to optical imaging below the diffraction limit.
If the Raman measurements are performed through the SNOM tip, high-resolution images with a lateral resolution down to 60 nm can be generated.
Raman and SEM
The Raman-SEM combination is a new correlative microscopy technique. Structures in the nm-range detected by SEM can now be correlated to chemical Raman imaging from the same sample area.