Evaluation of Optical and Acoustical Properties of Ba<sub>1−x</sub>Sr<sub>x</sub>TiO<sub>3</sub> Thin Film Material Library via Conjugation of Picosecond Laser Ultrasonics with X-ray Diffraction, Energy Dispersive Spectroscopy, Electron Probe Micro Analysis, Scanning Electron and Atomic Force Microscopies
Wide-range continuous spatial variation of the film composition in lateral compositionally graded epitaxial films requires the development of high throughput measurement techniques for their local and non-destructive characterization with the highest possible spatial resolution. Here we report on th...
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MDPI AG
2021
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oai:doaj.org-article:7ec5e75d26664445aa28f018f9b154552021-11-25T18:32:41ZEvaluation of Optical and Acoustical Properties of Ba<sub>1−x</sub>Sr<sub>x</sub>TiO<sub>3</sub> Thin Film Material Library via Conjugation of Picosecond Laser Ultrasonics with X-ray Diffraction, Energy Dispersive Spectroscopy, Electron Probe Micro Analysis, Scanning Electron and Atomic Force Microscopies10.3390/nano111131312079-4991https://doaj.org/article/7ec5e75d26664445aa28f018f9b154552021-11-01T00:00:00Zhttps://www.mdpi.com/2079-4991/11/11/3131https://doaj.org/toc/2079-4991Wide-range continuous spatial variation of the film composition in lateral compositionally graded epitaxial films requires the development of high throughput measurement techniques for their local and non-destructive characterization with the highest possible spatial resolution. Here we report on the first application of the picosecond laser ultrasonics (PLU) technique for the evaluation of acoustical and optical parameters of lateral compositionally graded film, the Ba<sub>1−x</sub>Sr<sub>x</sub>TiO<sub>3</sub> (0 ≤ x ≤ 1) material library. The film was not dedicatedly prepared for its opto-acousto-optic evaluation by PLU, exhibiting significant lateral variations in thickness and surface roughness. Therefore, the achieved measurements of the sound velocity and of the optical refractive index, and characterization of the surface roughness confirm the robustness of the PLU technique for thin film evaluation. We hope that the first measurements of the acoustical and optical properties of epitaxial grown Ba<sub>1−x</sub>Sr<sub>x</sub>TiO<sub>3</sub> (0 ≤ x ≤ 1) by PLU technique accomplished here provide the parameters required for more extended predictive design of the phononic, photonic and phoxonic mirrors and cavities with superior properties/functionalities for novel multifunctional nanodevices.Sathyan SandeepSamuel RaetzJerome WolfmanBeatrice NegulescuGuozhen LiuJean-Louis LonguetThéo ThréardVitalyi E. GusevMDPI AGarticlepicosecond laser ultrasonicstime-domain Brillouin scatteringoptoacousticsacousto-opticsnanoascale imagingnanomaterialsChemistryQD1-999ENNanomaterials, Vol 11, Iss 3131, p 3131 (2021) |
| institution |
DOAJ |
| collection |
DOAJ |
| language |
EN |
| topic |
picosecond laser ultrasonics time-domain Brillouin scattering optoacoustics acousto-optics nanoascale imaging nanomaterials Chemistry QD1-999 |
| spellingShingle |
picosecond laser ultrasonics time-domain Brillouin scattering optoacoustics acousto-optics nanoascale imaging nanomaterials Chemistry QD1-999 Sathyan Sandeep Samuel Raetz Jerome Wolfman Beatrice Negulescu Guozhen Liu Jean-Louis Longuet Théo Thréard Vitalyi E. Gusev Evaluation of Optical and Acoustical Properties of Ba<sub>1−x</sub>Sr<sub>x</sub>TiO<sub>3</sub> Thin Film Material Library via Conjugation of Picosecond Laser Ultrasonics with X-ray Diffraction, Energy Dispersive Spectroscopy, Electron Probe Micro Analysis, Scanning Electron and Atomic Force Microscopies |
| description |
Wide-range continuous spatial variation of the film composition in lateral compositionally graded epitaxial films requires the development of high throughput measurement techniques for their local and non-destructive characterization with the highest possible spatial resolution. Here we report on the first application of the picosecond laser ultrasonics (PLU) technique for the evaluation of acoustical and optical parameters of lateral compositionally graded film, the Ba<sub>1−x</sub>Sr<sub>x</sub>TiO<sub>3</sub> (0 ≤ x ≤ 1) material library. The film was not dedicatedly prepared for its opto-acousto-optic evaluation by PLU, exhibiting significant lateral variations in thickness and surface roughness. Therefore, the achieved measurements of the sound velocity and of the optical refractive index, and characterization of the surface roughness confirm the robustness of the PLU technique for thin film evaluation. We hope that the first measurements of the acoustical and optical properties of epitaxial grown Ba<sub>1−x</sub>Sr<sub>x</sub>TiO<sub>3</sub> (0 ≤ x ≤ 1) by PLU technique accomplished here provide the parameters required for more extended predictive design of the phononic, photonic and phoxonic mirrors and cavities with superior properties/functionalities for novel multifunctional nanodevices. |
| format |
article |
| author |
Sathyan Sandeep Samuel Raetz Jerome Wolfman Beatrice Negulescu Guozhen Liu Jean-Louis Longuet Théo Thréard Vitalyi E. Gusev |
| author_facet |
Sathyan Sandeep Samuel Raetz Jerome Wolfman Beatrice Negulescu Guozhen Liu Jean-Louis Longuet Théo Thréard Vitalyi E. Gusev |
| author_sort |
Sathyan Sandeep |
| title |
Evaluation of Optical and Acoustical Properties of Ba<sub>1−x</sub>Sr<sub>x</sub>TiO<sub>3</sub> Thin Film Material Library via Conjugation of Picosecond Laser Ultrasonics with X-ray Diffraction, Energy Dispersive Spectroscopy, Electron Probe Micro Analysis, Scanning Electron and Atomic Force Microscopies |
| title_short |
Evaluation of Optical and Acoustical Properties of Ba<sub>1−x</sub>Sr<sub>x</sub>TiO<sub>3</sub> Thin Film Material Library via Conjugation of Picosecond Laser Ultrasonics with X-ray Diffraction, Energy Dispersive Spectroscopy, Electron Probe Micro Analysis, Scanning Electron and Atomic Force Microscopies |
| title_full |
Evaluation of Optical and Acoustical Properties of Ba<sub>1−x</sub>Sr<sub>x</sub>TiO<sub>3</sub> Thin Film Material Library via Conjugation of Picosecond Laser Ultrasonics with X-ray Diffraction, Energy Dispersive Spectroscopy, Electron Probe Micro Analysis, Scanning Electron and Atomic Force Microscopies |
| title_fullStr |
Evaluation of Optical and Acoustical Properties of Ba<sub>1−x</sub>Sr<sub>x</sub>TiO<sub>3</sub> Thin Film Material Library via Conjugation of Picosecond Laser Ultrasonics with X-ray Diffraction, Energy Dispersive Spectroscopy, Electron Probe Micro Analysis, Scanning Electron and Atomic Force Microscopies |
| title_full_unstemmed |
Evaluation of Optical and Acoustical Properties of Ba<sub>1−x</sub>Sr<sub>x</sub>TiO<sub>3</sub> Thin Film Material Library via Conjugation of Picosecond Laser Ultrasonics with X-ray Diffraction, Energy Dispersive Spectroscopy, Electron Probe Micro Analysis, Scanning Electron and Atomic Force Microscopies |
| title_sort |
evaluation of optical and acoustical properties of ba<sub>1−x</sub>sr<sub>x</sub>tio<sub>3</sub> thin film material library via conjugation of picosecond laser ultrasonics with x-ray diffraction, energy dispersive spectroscopy, electron probe micro analysis, scanning electron and atomic force microscopies |
| publisher |
MDPI AG |
| publishDate |
2021 |
| url |
https://doaj.org/article/7ec5e75d26664445aa28f018f9b15455 |
| work_keys_str_mv |
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1718411027256705024 |