Theory for collective dynamics and optical response of metallic nanoparticles under light-induced force and fluctuations |
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| Authors: | Takuya Iida |
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| Institution: | (1) Nanoscience and Nanotechnology Research Center, Research Organization for the Twenty-First Century, Osaka Prefecture University, 1-2, Gakuencho, Nakaku, Sakai, Osaka 599-8570, Japan;(2) PRESTO, Japan Science and Technology Agency, 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, Japan |
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| Abstract: | Due to the strong optical response of localized surface plasmon (LSP) in metallic nanoparticles (NPs), the light-induced force
(LIF) is also strong and can be used for the control of their dynamics even at room temperature. However, properties of LIF
are still unclear under the collective effects of LSP in multiple NPs. In this article, I discuss the fundamental properties
of LIF exerted on metallic NPs taking into account photomediated interaction between NPs, and light-induced dynamics of NPs
in fluid medium (for example, water) in the presence of the thermal fluctuations. Remarkably, it has been clarified that the
collective optical response of LSP can be greatly modulated through the dynamical pattern formation process of NPs by LIF. |
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