Terms such as spontaneous Raman spectroscopy or normal Raman spectroscopy summarize Raman spectroscopy techniques based on Raman scattering by using normal far-field optics as described above.
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.
Learn about Raman spectroscopy—What is Raman spectroscopy? How does Raman spectroscopy work? Learn the fundamentals of Raman, including the Raman effect and Raman scattering, the advantages and disadvantages of Raman, and more.
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. Experimental considerations are discussed, and examples of Raman spectroscopy instrumentation setups are presented.
We begin by providing an overview of Raman spectroscopy, highlighting its significance in unraveling the complexities of biological research. The focus of this review is on Raman spectroscopy concepts and methods, clarifying the fundamentals of Raman scattering and spectral interpretation.
Since Raman uses visible laser light, a Raman spectrum can be obtained through any kind of packaging that visible light can go through. This means substances inside glass bottles, plastics bags, or other transparent containers can be analyzed without opening the packaging.