Raman Scattering

Raman spectroscopy is a technique to detect the vibrational or rotational modes of lattice or molecules. There are two types of scattering, Rayleigh scattering, and Raman scattering. Rayleigh scattering is elastic, and Raman scattering is inelastic. When Raman scattering occurs, there is energy differentiate between the incident photons and scattered photons. Raman spectroscopy exhibits this energy differentiate, which corresponds with the specific vibrational or rotational mode of lattice or molecules. Therefore, it is commonly used to identify and analyze the structure and composition of the sample. It also can be combined with a microscope to observe single nanostructures or microscopic areas called micro-Raman spectroscopy. The peaks of the signals become sharper and more distinguishable at cryogenic temperatures. The phonon-phonon coupling can be studied with temperature-dependent Raman spectroscopy.

Customer References:

1. G. de Vito, Department of Physics, University of Basel, Switzerland: International Journal of Heat and Mass Transfer 224 125302 (2024)

2. Janice Musfeldt, Department of Chemistry, University of Tennessee, USA: Nature Partner Journals, 2D Mater Appl 5, 45 (2021); Nature Partner Journals, Quantum Mater. 5, 20 (2020).

3. Alexander Krylov, Kirensky Institute of Physics, Siberian Branch, Russian Academy of Sciences, Russian: Cryst. Growth Des., 14, 923-927 (2014); Cryst. Growth Des., 14, 374-380 (2014).

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