自组装光等离子体分子在纳米尺度上增强光聚焦和操作

Yan Hong, S. Boriskina, W. Ahn, B. Reinhard
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引用次数: 1

摘要

通过模板引导自组装策略,制备了由Au NP支持的TiO2纳米粒子(NPs)组成的杂化团簇,并利用实验和理论工具研究了构建块之间的电磁相互作用。所进行的研究表明,构建块之间的电磁相互作用导致电场和磁场组件的增强。光能在星团中的重新分配不仅增加了星团内热点的电场强度,而且增加了邻近环境中容易接近的电场强度。
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Self-assembled optoplasmonic molecules for enhanced light focusing and manipulation on nanometer length scales
Hybrid clusters comprising TiO2 nanoparticles (NPs) supported by discrete clusters of Au NP were fabricated through a template guided self-assembly strategy, and the electromagnetic interactions between the building blocks were investigated using experimental and theoretical tools. The performed studies reveal that electromagnetic interactions between the building blocks result in an enhancement of both electric and magnetic field components. A redistribution of the optical energy in the cluster increases the E-field intensity not only in hot-spots within the cluster but also in the adjacent ambient environment where it is easily accessible.
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