Development of confocal picosecond ultrasonics for visualizing propagation of an acoustic wave

Nakamura, Nobutomo; Maehara, Atsushi; Ogi, Hirotsugu

Japanese Journal of Applied Physics, 2020, 59, SKKB04

Number of Access:693（2025-11-25 02:19 Counts）

Identifier to cite or link to this item: https://hdl.handle.net/11094/84482

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Title
Development of confocal picosecond ultrasonics for visualizing propagation of an acoustic wave
Creator
NRID
1000050452404 1000050452404
researchmap permalink
nnakamura nnakamura
Scopus Author ID
7403356186 7403356186
ORCID
0000-0002-5338-842X 0000-0002-5338-842X
CreatorName
Nakamura, Nobutomo
CreatorName
Maehara, Atsushi
NRID
1000090252626 1000090252626
researchmap permalink
read0042771 read0042771
Scopus Author ID
35563683500 35563683500
ORCID
0000-0002-9602-5194 0000-0002-9602-5194
CreatorName
Ogi, Hirotsugu
Description
This is the Accepted Manuscript version of an article accepted for publication in Japanese Journal of Applied Physics. IOP Publishing Ltd are not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The Version of Record is available online at https://doi.org/10.35848/1347-4065/abea50.
Abstract
For visualizing propagation of an acoustic wave and evaluating the local sound velocity in micro/nano-meter structures, confocal picosecond ultrasonics is developed. In conventional picosecond ultrasonics, the measurement of local sound velocity was difficult, and macroscopic sound velocity and elastic properties were measured. However, in confocal picosecond ultrasonics, a confocal laser-scanning microscope is embedded in the optics of the picosecond ultrasonics, and the depth resolution is improved. Using the developed optics, we successfully observed propagation of an acoustic wave in thin film. In this paper, the optics we developed and the experimental results on silica film are reported.
Publisher
The Japan Society of Applied Physics
Source Title
Japanese Journal of Applied Physics
Volume (Issue)
59
Page
SKKB04
Date of Issued
2020-03-23
Language
English
Handle URL
https://hdl.handle.net/11094/84482
PISSN
00214922
eISSN
13474065
NCID
AA12295836
Relation.isVersionOf
DOI (Publisher Version)
https://doi.org/10.35848/1347-4065/ab7b15
Access Rights
open access
CopyRight
© 2020 The Japan Society of Applied Physics. This Accepted Manuscript is available for reuse under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License after the 12 month embargo period provided that all the terms of the license are adhered to.
oaire:version
Accepted Manuscript
Category
学術雑誌論文 Journal Article