Determination of the Coupling Coefficient C(ν) from the Calculations of the Low-frequency Raman Spectrum in PMMA

2015/12/02 by M. A. Korshunov, Korshunov, M. A.
Biochemistry, Genetics and Molecular Biology · Materials Science · Physics and Astronomy · #FOS: Physical sciences #Nonlinear Optical Materials Research #Optical and Acousto-Optic Technologies #Soft Condensed Matter (cond-mat.soft) #Spectroscopy Techniques in Biomedical and Chemical Research

paper · pdf · doi:10.48550/arxiv.1512.00811

openalex publication_date 2015/12/02 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28

Abstract

Using the atom-atom potentials method, we have calculated the low-frequency Raman spectra of molecular crystal model with elements of disorder (Poly-Methyl-Methacrylate) PMMA that has a flexible molecule. Based on the results the coupling factor C(ν) has been calculated. Anharmonicity of vibrations, electro-optical anharmonicity, and disorder were taken into account.

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