Raman spectroscopy is a nondestructive technique used for analyzing materials based on the scattering of monochromatic light. It provides information about chemical composition, crystal structure, and molecular interactions of a sample by measuring the shifts in energy of the scattered light. Raman spectroscopy is commonly used in fields such as chemistry, biology, materials science, and physics for analyzing a wide range of materials, including solids, liquids, and gases. It is known for its high sensitivity and the ability to provide detailed information about molecular structures and interactions.