Transition across a sharp interface: Data from Raman and Brillouin imaging spectroscopy
Brillouin and Raman imaging are powerful techniques for the investigation of complex materials and they are widely used in material science and biophysics [1–7]. When dealing with microstructures, the results interpretation requires an accurate understanding of the interaction processes in presence...
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| Format: | Article |
| Language: | English |
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Elsevier
2020-12-01
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| Series: | Data in Brief |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2352340920312610 |
| _version_ | 1818643726883356672 |
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| author | Silvia Caponi Daniele Fioretto Maurizio Mattarelli |
| author_facet | Silvia Caponi Daniele Fioretto Maurizio Mattarelli |
| author_sort | Silvia Caponi |
| collection | DOAJ |
| description | Brillouin and Raman imaging are powerful techniques for the investigation of complex materials and they are widely used in material science and biophysics [1–7]. When dealing with microstructures, the results interpretation requires an accurate understanding of the interaction processes in presence of acoustic and chemical boundaries between different materials [8–15]. The data here reported are obtained while scanning with sub-micron resolution the sharp interfaces between vitreous-SiO2/Water and Polyethylene (PET)/Glycerol. Molecular and acoustic vibrations were observed by means of a recently developed micro-spectrometer, which acquires simultaneously Raman and Brillouin spectra on the same point with high spatial and spectral resolution [3]. Two external optic configurations were adopted in order to evidence the dependency of the measurements on the optical scattering volume. The evolution of the detected phonon modes, propagating and not propagating, is obtained by a direct observation of the raw data for the two interfaces, which present different acoustic mismatch. These experimental records can be exploited by researchers employing Raman and Brillouin imaging to discuss the resolution limit of the techniques and to compare the effect of different experimental set-ups. Moreover, thanks to their high spectral resolution they can be useful to researchers working on acoustic phonon transport at interfaces to model the dependency of transmission of long wavelength phonons on the acoustic mismatch. |
| first_indexed | 2024-12-17T00:03:33Z |
| format | Article |
| id | doaj.art-ea4c2a4c7a5147ecbedfe15745072167 |
| institution | Directory Open Access Journal |
| issn | 2352-3409 |
| language | English |
| last_indexed | 2024-12-17T00:03:33Z |
| publishDate | 2020-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Data in Brief |
| spelling | doaj.art-ea4c2a4c7a5147ecbedfe157450721672022-12-21T22:11:01ZengElsevierData in Brief2352-34092020-12-0133106368Transition across a sharp interface: Data from Raman and Brillouin imaging spectroscopySilvia Caponi0Daniele Fioretto1Maurizio Mattarelli2Istituto Officina dei Materiali del CNR (CNR-IOM) Unità di Perugia, c/o Dip. di Fisica e Geologia, Università di Perugia, Perugia, ItalyDipartimento di Fisica e Geologia, Università di Perugia, Via A. Pascoli, Perugia I-06100, ItalyDipartimento di Fisica e Geologia, Università di Perugia, Via A. Pascoli, Perugia I-06100, Italy; Corresponding author.Brillouin and Raman imaging are powerful techniques for the investigation of complex materials and they are widely used in material science and biophysics [1–7]. When dealing with microstructures, the results interpretation requires an accurate understanding of the interaction processes in presence of acoustic and chemical boundaries between different materials [8–15]. The data here reported are obtained while scanning with sub-micron resolution the sharp interfaces between vitreous-SiO2/Water and Polyethylene (PET)/Glycerol. Molecular and acoustic vibrations were observed by means of a recently developed micro-spectrometer, which acquires simultaneously Raman and Brillouin spectra on the same point with high spatial and spectral resolution [3]. Two external optic configurations were adopted in order to evidence the dependency of the measurements on the optical scattering volume. The evolution of the detected phonon modes, propagating and not propagating, is obtained by a direct observation of the raw data for the two interfaces, which present different acoustic mismatch. These experimental records can be exploited by researchers employing Raman and Brillouin imaging to discuss the resolution limit of the techniques and to compare the effect of different experimental set-ups. Moreover, thanks to their high spectral resolution they can be useful to researchers working on acoustic phonon transport at interfaces to model the dependency of transmission of long wavelength phonons on the acoustic mismatch.http://www.sciencedirect.com/science/article/pii/S2352340920312610Brillouin spectroscopyRaman spectroscopyPhononsInterface |
| spellingShingle | Silvia Caponi Daniele Fioretto Maurizio Mattarelli Transition across a sharp interface: Data from Raman and Brillouin imaging spectroscopy Data in Brief Brillouin spectroscopy Raman spectroscopy Phonons Interface |
| title | Transition across a sharp interface: Data from Raman and Brillouin imaging spectroscopy |
| title_full | Transition across a sharp interface: Data from Raman and Brillouin imaging spectroscopy |
| title_fullStr | Transition across a sharp interface: Data from Raman and Brillouin imaging spectroscopy |
| title_full_unstemmed | Transition across a sharp interface: Data from Raman and Brillouin imaging spectroscopy |
| title_short | Transition across a sharp interface: Data from Raman and Brillouin imaging spectroscopy |
| title_sort | transition across a sharp interface data from raman and brillouin imaging spectroscopy |
| topic | Brillouin spectroscopy Raman spectroscopy Phonons Interface |
| url | http://www.sciencedirect.com/science/article/pii/S2352340920312610 |
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