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

Number of Access:267（2025-08-15 01:09 Counts）

Identifier to cite or link to this item: https://hdl.handle.net/11094/101398

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Title
Driving Micro-Objects Using Optical Force due to Fluorescence Emission From Molecules
Creator
NRID
1000010372632 1000010372632
ORCID
0000-0003-0582-4108 0000-0003-0582-4108
researchmap permalink
itosyoji49 itosyoji49
Scopus Author ID
7404826174 7404826174
CreatorName
Ito, Syoji
CreatorName
Nanno, Takayuki
NRID
1000040573134 1000040573134
CreatorName
Kaji, Takahiro
NRID
1000030793583 1000030793583
CreatorName
Tamura, Mamoru
NRID
1000010405350 1000010405350
CreatorName
Iida, Takuya
NRID
1000040182000 1000040182000
ORCID
0000-0002-6020-6591 0000-0002-6020-6591
researchmap permalink
read0076304 read0076304
Scopus Author ID
8513846500 8513846500
CreatorName
Miyasaka, Hiroshi
Subject
fluorescence
optical emission force
optical force
optical manipulation
photomechanical microsystems
Description
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.
Abstract
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.
Publisher
John Wiley and Sons Inc
Source Title
Advanced Optical Materials
Page
2403546
Date of Issued
2025-04-19
Language
English
Handle URL
https://hdl.handle.net/11094/101398
eISSN
21951071
Relation.isIdenticalTo
DOI (Publisher Version)
https://doi.org/10.1002/adom.202403546
Access Rights
open access
CopyRight
This article is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
oaire:version
Version of Record
Category
学術雑誌論文 Journal Article