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Raman

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Raman spectroscopy, named after Sir C.V Raman, is a type of analytical technique used to determine molecular species. The technique functions by studying the vibrational, rotational, and other low-frequency modes in a system based on inelastic scattering, or Raman scattering, of monochromatic light, usually from a laser in the visible, near infrared, or near ultraviolet range. The working system of this method consists of a sample illuminated with a laser beam. The light from the illuminated spot is collected using a lens and is sent through a optical band transmitting device called monometer. This makes the wavelengths near the laser line to filter due to electric Reileigh Scattering, while the rest is dispersed.