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タイトル: Observation of number-density-dependent growth of plasmonic nanobubbles.
著者: Nakajima, Takashi
Wang, Xiaolong
Chatterjee, Souvik
Sakka, Tetsuo  kyouindb  KAKEN_id
著者名の別形: 中嶋, 隆
作花, 哲夫
発行日: 29-Jun-2016
出版者: Springer Nature
誌名: Scientific reports
巻: 6
論文番号: 28667
抄録: Interaction dynamics of laser pulses and nanoparticles are of great interest in recent years. In many cases, laser-nanoparticle interactions result in the formation of plasmonic nanobubbles, and the dynamics of nanoparticles and nanobubbles are inseparable. So far, very little attention has been paid to the number density. Here we report the first observation of number-density-dependent growth of plasmonic nanobubbles. Our results show that the nanobubbles growth depends (does not depend) on the number density at high (low) laser fluence, although the inter-particle distance in the solution is as long as 14-30 μm. This cannot be explained by the existing physical picture, and we propose a new model which takes into account the pressure waves arising from nanoparticles. The numerical results based on this model agree well with the experimental results. Our findings imply that the number density can be a new doorknob to control laser-nanobubble as well as laser-nanoparticle interactions.
記述: ナノバブルのおしくらまんじゅうを初めて観測-新規材料創製への応用に期待-. 京都大学プレスリリース. 2016-07-04.
著作権等: This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article's Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
URI: http://hdl.handle.net/2433/215840
DOI(出版社版): 10.1038/srep28667
PubMed ID: 27354184
関連リンク: http://www.kyoto-u.ac.jp/ja/research/research_results/2016/160629_1.html
出現コレクション:学術雑誌掲載論文等

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