Tomographic reconstruction of picosecond acoustic strain pulses using automated angle-scan probing with visible light
By means of an ultrafast optical technique, picosecond acoustic strain pulses in a transparent medium are tomographically visualized at GHz frequencies. The strain distribution in BK7 glass is reconstructed from time-domain reflectivity changes of 415-nm probe light as a function of the optical inci...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2023-12-01
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| Series: | Photoacoustics |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2213597923001209 |
| _version_ | 1797398558772559872 |
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| author | Motonobu Tomoda Hiroyuki Matsuo Osamu Matsuda Roberto Li Voti Oliver B. Wright |
| author_facet | Motonobu Tomoda Hiroyuki Matsuo Osamu Matsuda Roberto Li Voti Oliver B. Wright |
| author_sort | Motonobu Tomoda |
| collection | DOAJ |
| description | By means of an ultrafast optical technique, picosecond acoustic strain pulses in a transparent medium are tomographically visualized at GHz frequencies. The strain distribution in BK7 glass is reconstructed from time-domain reflectivity changes of 415-nm probe light as a function of the optical incidence angle with 1 ps temporal and 120 nm spatial resolutions, enabled by automated angle scanning. The latter resolution is achieved owing to the commensurate acoustic wavelength. Applications include imaging strain, carrier and temperature distributions on ultrashort timescales. |
| first_indexed | 2024-03-09T01:27:13Z |
| format | Article |
| id | doaj.art-4ef0113df830407ebfa923aa623e86d3 |
| institution | Directory Open Access Journal |
| issn | 2213-5979 |
| language | English |
| last_indexed | 2024-03-09T01:27:13Z |
| publishDate | 2023-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Photoacoustics |
| spelling | doaj.art-4ef0113df830407ebfa923aa623e86d32023-12-10T06:16:05ZengElsevierPhotoacoustics2213-59792023-12-0134100567Tomographic reconstruction of picosecond acoustic strain pulses using automated angle-scan probing with visible lightMotonobu Tomoda0Hiroyuki Matsuo1Osamu Matsuda2Roberto Li Voti3Oliver B. Wright4Faculty of Engineering, Hokkaido University, Sapporo, 060-8628, Japan; Corresponding author.Faculty of Engineering, Hokkaido University, Sapporo, 060-8628, JapanFaculty of Engineering, Hokkaido University, Sapporo, 060-8628, JapanDepartment SBAI, Sapienza University of Roma, Via A. Scarpa 14, Roma, I-00161, ItalyHokkaido University, Sapporo, 060-0808, Japan; Graduate School of Engineering, Osaka University, Yamadaoka 2-1, Suita, Osaka, 565-0871, JapanBy means of an ultrafast optical technique, picosecond acoustic strain pulses in a transparent medium are tomographically visualized at GHz frequencies. The strain distribution in BK7 glass is reconstructed from time-domain reflectivity changes of 415-nm probe light as a function of the optical incidence angle with 1 ps temporal and 120 nm spatial resolutions, enabled by automated angle scanning. The latter resolution is achieved owing to the commensurate acoustic wavelength. Applications include imaging strain, carrier and temperature distributions on ultrashort timescales.http://www.sciencedirect.com/science/article/pii/S2213597923001209Picosecond ultrasonicsAcoustic tomographyBrillouin scatteringAngle scanInverse problemSingular value decomposition |
| spellingShingle | Motonobu Tomoda Hiroyuki Matsuo Osamu Matsuda Roberto Li Voti Oliver B. Wright Tomographic reconstruction of picosecond acoustic strain pulses using automated angle-scan probing with visible light Photoacoustics Picosecond ultrasonics Acoustic tomography Brillouin scattering Angle scan Inverse problem Singular value decomposition |
| title | Tomographic reconstruction of picosecond acoustic strain pulses using automated angle-scan probing with visible light |
| title_full | Tomographic reconstruction of picosecond acoustic strain pulses using automated angle-scan probing with visible light |
| title_fullStr | Tomographic reconstruction of picosecond acoustic strain pulses using automated angle-scan probing with visible light |
| title_full_unstemmed | Tomographic reconstruction of picosecond acoustic strain pulses using automated angle-scan probing with visible light |
| title_short | Tomographic reconstruction of picosecond acoustic strain pulses using automated angle-scan probing with visible light |
| title_sort | tomographic reconstruction of picosecond acoustic strain pulses using automated angle scan probing with visible light |
| topic | Picosecond ultrasonics Acoustic tomography Brillouin scattering Angle scan Inverse problem Singular value decomposition |
| url | http://www.sciencedirect.com/science/article/pii/S2213597923001209 |
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