The name "Raman spectroscopy" typically refers to vibrational Raman spectroscopy using laser wavelengths which are not absorbed by the sample. This inelastic scattering is the Raman effect, first described by physicist C.V. Raman in 1928.
The energy exchange happens because the photon either gives energy to the molecule (leaving it in a higher vibrational state) or takes energy from it (if the molecule was already vibrating). Raman spectroscopic analysis is based on the Raman scattering effect discovered by Indian scientist C.V. Raman (Raman) and analyzes the scattering spectrum with different frequencies from the incident light to obtain information on molecular vibration and rotation. In the following sections, the fundamental physics that underpins the spontaneous Raman effect, stimulated- and coherent Raman spectroscopy, SERS and TERS are detailed in the context of their applications.
raman dhawan md, Experimental considerations are discussed, and examples of Raman spectroscopy instrumentation setups are presented. What is Raman spectroscopy? Raman spectroscopy is a versatile, nondestructive technique that yields detailed information about chemical structure. Raman spectrometers probe materials using monochromatic laser light, usually at visible or near-infrared wavelengths. We briefly explain the fundamentals of Raman spectroscopy and shed light on how the interaction of light with the chemical bonds is used for chemical analysis.
raman dhawan md, Raman spectroscopy has been proven to be a fast, convenient, and nondestructive technique for advancing our understanding of biological systems. The Raman effect originates from the inelastic scattering of light which directly probe vibration/rotational states in biological molecules and materials. Raman spectroscopy is a molecular spectroscopic technique that utilizes the interaction of light with matter to gain insight into a material's make up or characteristics, like FTIR.
