等离子体子
纳米结构
背景(考古学)
超材料
电场
材料科学
平面的
电磁场
纳米技术
光学
物理
计算机科学
古生物学
计算机图形学(图像)
量子力学
生物
作者
Sergio Balestrieri,Gianluigi Zito,Mario Iodice,Giuseppe Coppola
出处
期刊:Optics Express
[The Optical Society]
日期:2023-09-26
卷期号:31 (21): 33945-33945
摘要
The growing demand to manipulate objects with long-range techniques has increasingly called for the development of techniques capable of intensifying and spatially concentrating electromagnetic fields with the aim of improving the electromagnetic forces acting on objects. In this context, one of the most interesting techniques is based on the use of plasmonic phenomena that have the ability to amplify and structure the electric field in very small areas. In this paper, we report the simulation analysis of a plasmonic nanostructure useful for optimizing the profile of the induced plasmonic field distribution and thus the motion dynamics of a nanoparticle, overcoming some limitations observed in the literature for similar structures. The elementary cell of the proposed nanostructure consists of two gold scalene trapezoids forming a planar V-groove. The spatial replication of this elementary cell to form linear or circular array sequences is used to improve the final nanoparticle velocity. The effect of the geometry variation on the plasmonic behaviour and consequently on the force generated, was analyzed in detail. The results suggest that this optimized plasmonic structure has the potential to efficiently propel macroscopic objects, with implications for various fields such as aerospace and biomedical research.
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