盘环纳米粒子中混合等离子体模式的不对称效应

IF 3.3 4区物理与天体物理 Q2 CHEMISTRY, PHYSICAL Plasmonics Pub Date : 2024-08-07 DOI:10.1007/s11468-024-02468-1

Abbas Azarian, Ferydon Babaei

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引用次数: 0

摘要

本文采用有限差分时域模拟方法研究了圆盘@圆环纳米粒子的混合等离子体模式特性。研究中将圆盘边缘到环中心的距离变化、极化角变化和圆盘数量作为不对称参数。研究结果表明，在近红外和可见光区域出现了两种等离子体，分别与成键和反成键模式有关。这项研究有望应用于纳米和生物传感器中化学物种的检测以及混合等离子体波长下纳米激光器的阈值激发。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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The Asymmetry Effect on Hybrid Plasmon Modes in Disk@ring Nanoparticle

Here, the characteristics of hybrid plasmon modes of disk@ring nanoparticle were investigated by finite difference time domain simulation method. The change of the distance from the edge of the disk to the center of the ring, the change of the polarization angle, and the number of disks were considered as an asymmetry parameter in the research. The obtained results showed that two kinds of plasmon appear in near-infrared and visible regions, which are related to bonding and anti-bonding modes, respectively. This study can have potential applications in nano and biosensors in the detection of chemical species and threshold excitation of nanolasers in hybrid plasmonic wavelengths.

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来源期刊

Plasmonics 工程技术-材料科学：综合

CiteScore

5.90

自引率

6.70%

发文量

164

审稿时长

2.1 months

期刊介绍： Plasmonics is an international forum for the publication of peer-reviewed leading-edge original articles that both advance and report our knowledge base and practice of the interactions of free-metal electrons, Plasmons. Topics covered include notable advances in the theory, Physics, and applications of surface plasmons in metals, to the rapidly emerging areas of nanotechnology, biophotonics, sensing, biochemistry and medicine. Topics, including the theory, synthesis and optical properties of noble metal nanostructures, patterned surfaces or materials, continuous or grated surfaces, devices, or wires for their multifarious applications are particularly welcome. Typical applications might include but are not limited to, surface enhanced spectroscopic properties, such as Raman scattering or fluorescence, as well developments in techniques such as surface plasmon resonance and near-field scanning optical microscopy.