Driving Micro-Objects Using Optical Force due to Fluorescence Emission From Molecules

Ito, Syoji; Nanno, Takayuki; Kaji, Takahiro et al.

Advanced Optical Materials, 2025, 2403546

アクセス数:282件（2025-08-28 22:27 集計）

固定URL: https://hdl.handle.net/11094/101398

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タイトル
Driving Micro-Objects Using Optical Force due to Fluorescence Emission From Molecules
著者
NRID
1000010372632 1000010372632
ORCID
0000-0003-0582-4108 0000-0003-0582-4108
researchmap permalink
itosyoji49 itosyoji49
Scopus Author ID
7404826174 7404826174
著者名
Ito, Syoji
著者名
Nanno, Takayuki
NRID
1000040573134 1000040573134
著者名
Kaji, Takahiro
NRID
1000030793583 1000030793583
著者名
Tamura, Mamoru
NRID
1000010405350 1000010405350
著者名
Iida, Takuya
NRID
1000040182000 1000040182000
ORCID
0000-0002-6020-6591 0000-0002-6020-6591
researchmap permalink
read0076304 read0076304
Scopus Author ID
8513846500 8513846500
著者名
Miyasaka, Hiroshi
キーワード等
fluorescence
optical emission force
optical force
optical manipulation
photomechanical microsystems
内容
Ito S., Nanno T., Kaji T., et al. Driving Micro-Objects Using Optical Force due to Fluorescence Emission From Molecules. Advanced Optical Materials (2025); https://doi.org/10.1002/adom.202403546.
抄録
Emission of fluorescence in a specific direction generates an optical force in the opposite direction of the emission by the momentum conservation raw. This “emission force” can induce the directional transportation of small objects anisotropically emitting fluorescence from molecules in the objects only by photo-irradiation without any spatio-temporal control of light field. To demonstrate the movement by the emission force, we fabricated dye-doped cylinder-shaped polymer micro-objects (PMOs) with gold thin films on their top surfaces. The single PMOs in water on a glass substrate, the side surfaces of which were facing to the substrate, were photoexcited with a continuous wave visible (532 nm) laser. The dyes in a PMO emitted strong fluorescence toward the non-coated end (bottom) of the micro-cylinder due to the reflection by the gold thin film on the top. The individual motions of the PMOs under photoexcitation are detected with fluorescence microscopy. Analysis of the trajectories of the PMOs confirmed that the anisotropic fluorescence emission led to the transportation of the PMOs in the opposite direction of the fluorescence. The emission force acting on the PMO is quantitatively evaluated through computational simulation considering the emission force and Brownian motion.
出版者
John Wiley and Sons Inc
収録物名
Advanced Optical Materials
ページ
2403546
刊行年月
2025-04-19
言語
英語
ハンドルURL
https://hdl.handle.net/11094/101398
eISSN
21951071
関連情報 (isIdenticalTo)
DOI (出版社版)
https://doi.org/10.1002/adom.202403546
アクセス権
open access
権利情報
This article is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
出版タイプ
Version of Record
カテゴリ
学術雑誌論文 Journal Article