Technical Notes

Confocal Raman Imaging/ Optical Sectioning

Optically sectioned Raman images can be obtained from a sample of interest by either using a confocal back-scattering or off-axis geometry. In the confocal Raman spectroscopy/imaging system, a pin-hole is utilized to spatially filter away light emanating from outside the desired excitation volume (Fig.1), while in an off-axis Raman system...
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Introduction to Raman Spectroscopy

Raman scattering is the inelastic scattering of light and is a result of molecular vibrations. The light interacts with the molecule and distorts the electronic cloud around the nuclei. This distortion results in polarization of the molecule and forms a short-lived state known as ‘virtual state’. The photon is re-radiated...
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