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The primeval optical evolving matter by optical binding inside and outside the photon beam. Nat Commun 2022; 13:5325. [PMID: 36088393 PMCID: PMC9464242 DOI: 10.1038/s41467-022-33070-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Accepted: 08/25/2022] [Indexed: 11/08/2022] Open
Abstract
AbstractOptical binding has recently gained considerable attention because it enables the light-induced assembly of many-body systems; however, this phenomenon has only been described between directly irradiated particles. Here, we demonstrate that optical binding can occur outside the focal spot of a single tightly focused laser beam. By trapping at an interface, we assemble up to three gold nanoparticles with a linear arrangement which fully-occupies the laser focus. The trapping laser is efficiently scattered by this linear alignment and interacts with particles outside the focus area, generating several discrete arc-shape potential wells with a half-wavelength periodicity. Those external nanoparticles inside the arcs show a correlated motion not only with the linear aligned particles, but also between themselves even both are not directly illuminated. We propose that the particles are optically bound outside the focal spot by the back-scattered light and multi-channel light scattering, forming a dynamic optical binding network.
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Kamit A, Tseng C, Kudo T, Sugiyama T, Hofkens J, Bresolí‐Obach R, Masuhara H. Unraveling the three‐dimensional morphology and dynamics of the optically evolving polystyrene nanoparticle assembly using dual‐objective lens microscopy. J CHIN CHEM SOC-TAIP 2021. [DOI: 10.1002/jccs.202100275] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Abdullah Kamit
- Department of Applied Chemistry and Center for Emergent Functional Matter Science National Yang Ming Chao Tung University Hsinchu Taiwan
| | - Ching‐Shiang Tseng
- Department of Applied Chemistry and Center for Emergent Functional Matter Science National Yang Ming Chao Tung University Hsinchu Taiwan
| | - Tetsuhiro Kudo
- Department of Applied Chemistry and Center for Emergent Functional Matter Science National Yang Ming Chao Tung University Hsinchu Taiwan
- Laser Science Laboratory Toyota Technological University Nagoya Japan
| | - Teruki Sugiyama
- Department of Applied Chemistry and Center for Emergent Functional Matter Science National Yang Ming Chao Tung University Hsinchu Taiwan
- Division of Materials Science, Graduate School of Science and Technology Nara Institute of Science and Technology Ikoma Nara Japan
| | - Johan Hofkens
- Department of Chemistry Katholieke Universiteit Leuven Leuven Belgium
- Max‐Planck‐Institute for Polymer Research Mainz Germany
| | - Roger Bresolí‐Obach
- Department of Applied Chemistry and Center for Emergent Functional Matter Science National Yang Ming Chao Tung University Hsinchu Taiwan
- Department of Chemistry Katholieke Universiteit Leuven Leuven Belgium
| | - Hiroshi Masuhara
- Department of Applied Chemistry and Center for Emergent Functional Matter Science National Yang Ming Chao Tung University Hsinchu Taiwan
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