Elimination of bandwidth effect in attenuation measurement with picosecond ultrasonics

Maehara, Atsushi; Nakamura, Nobutomo; Ogi, Hirotsugu et al.

Japanese Journal of Applied Physics, 2014, 53(8), 086602

アクセス数:331件（2025-07-30 14:28 集計）

固定URL: https://hdl.handle.net/11094/84484

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タイトル
Elimination of bandwidth effect in attenuation measurement with picosecond ultrasonics
著者
著者名
Maehara, Atsushi
NRID
1000050452404 1000050452404
researchmap permalink
nnakamura nnakamura
Scopus Author ID
7403356186 7403356186
ORCID
0000-0002-5338-842X 0000-0002-5338-842X
著者名
Nakamura, Nobutomo
NRID
1000090252626 1000090252626
researchmap permalink
read0042771 read0042771
Scopus Author ID
35563683500 35563683500
著者名
Ogi, Hirotsugu
NRID
1000080112027 1000080112027
著者名
Hirao, Masahiko
内容
Atsushi Maehara, Nobutomo Nakamura, Hirotsugu Ogi and Masahiko Hirao. Elimination of bandwidth effect in attenuation measurement with picosecond ultrasonics. Japanese Journal of Applied Physics, 53, 8, 086602. https://doi.org/10.7567/JJAP.53.086602.
抄録
We study the broadening effect of probing pulse light on the apparent attenuation of the Brillouin oscillation measured with picosecond ultrasonics. We observe experimentally that the attenuation of the Brillouin oscillation is sensitive to the bandwidth, and the apparent attenuation coefficient increases as the bandwidth increases, being far from the intrinsic attenuation coefficient. Theoretical calculation is performed to reconstruct the observed oscillations, and it is confirmed that there are several factors affecting the apparent attenuation in addition to the bandwidth. We finally propose equations that deduce the contribution of the broadening to the apparent attenuation of the Brillouin oscillation.
出版者
The Japan Society of Applied Physics
収録物名
Japanese Journal of Applied Physics
巻(号)
53(8)
ページ
086602
刊行年月
2014-07-28
言語
英語
ハンドルURL
https://hdl.handle.net/11094/84484
PISSN
00214922
eISSN
13474065
NCID
AA12295836
関連情報 (isVersionOf)
DOI (出版社版)
https://doi.org/10.7567/JJAP.53.086602
アクセス権
open access
出版タイプ
Accepted Manuscript
カテゴリ
学術雑誌論文 Journal Article