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About Raman Scattering: From Inelastic Photons to SERS and Coherent Raman Imaging

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You will learn why a tiny fraction of scattered photons come back shifted in energy, and how that shift encodes a molecule's vibrational fingerprint. You will be able to predict which vibrations are Raman-active from polarizability and symmetry, read a Raman spectrum in wavenumbers, and explain every part of a real spectrometer from laser to notch filter to CCD. You will also understand the practical enemy of the technique, fluorescence background, and the modern enhancement strategies that beat Raman's intrinsic weakness: resonance Raman, SERS, TERS, CARS and stimulated Raman microscopy.