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Raman spectroscopy

Obtain information about the molecular structure and crystal structure of the sample.

Raman spectroscopy is a technique that utilizes the phenomenon of light scattering (Raman effect), where the frequency of incident light changes as a result of interaction with molecules, to obtain information about the structure within molecules. - It is possible to obtain information about the molecular structure and crystal structure of the sample. - By using laser light, it can measure smaller areas compared to FT-IR (beam diameter approximately 1 μm).

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basic information

Raman scattering is the phenomenon where light of a different wavenumber ν, corresponding to vibrational energy, is scattered in response to incident light with wavenumber ν0. In Raman spectroscopy, by detecting the Stokes Raman light emitted at a different wavenumber ν from the incident light, a spectrum can be obtained, allowing for the identification of the vibrational modes of atomic groups contained in the sample and providing information about their bonding states.

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Applications/Examples of results

- Qualitative analysis of foreign substances - Structural state evaluation of carbon films - Structural state evaluation of SiO2 films - Evaluation of stress and crystallinity of Si - Evaluation of curing degree of resin - Evaluation of crystallinity of compound semiconductors

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