Rh纳米结构消光特性模拟与分析  

Simulation and Analysis of Extinction Properties of Rh Nanostructures

作　　者：江睿 陈芳 郑昭慧 柯少颖 周锦荣 刘冠洲 黄志伟 Jiang Rui;Chen Fang;Zheng Zhaohui;Ke Shaoying;Zhou Jinrong;Liu Guanzhou;Huang Zhiwei(College of Physics and Information Engineering,Minnan Normal University,Zhangzhou 363000,Fujian,China)

机构地区：[1]闽南师范大学物理与信息工程学院,福建漳州363000

出　　处：《激光与光电子学进展》2023年第19期195-201,共7页Laser & Optoelectronics Progress

基　　金：国家自然科学基金(62004087);福建省自然科学基金(2020J01815);闽南师范大学校长基金(KJ2020006)。

摘　　要：近年来,Rh纳米结构因在紫外波段有较强的局域表面等离激元共振(LSPR)效应,且材料的物理化学性能稳定,引起了广泛关注。以Rh纳米结构为研究对象,采用时域有限差分法系统地模拟并分析200~400 nm波段圆柱状Rh纳米阵列结构的消光特性和电场强度分布,以此研究Rh纳米结构的局域表面等离激元共振特性。结果表明:Rh纳米结构的LSPR特性与其直径、高度、间距以及周围折射率都有极强的相关性。通过这些参数的变化可以有效调制Rh纳米结构的LSPR共振波段,这对实现Rh纳米结构LSPR效应在紫外吸收、探测等相关领域应用具有重要参考意义。Recently,Rh nanostructures have attracted significant research attention because of their strong localized surface plasmon resonance(LSPR) at ultraviolet wavelengths and stable physical and chemical properties.In this study,the extinction properties and electric field intensity distribution of cylindrical Rh nanostructures in 200-400 nm wavebands are systematically simulated and analyzed using the finite-difference time-domain method to examine the LSPR of Rh nanostructures.The results show that the LSPR properties of Rh nanostructures are significantly correlated with the diameter,height,spacing,and peripheral refractive index.The LSPR resonance wavebands of Rh nanostructures can be effectively modulated by varying the structural parameters.This study provides a reference for applying the LSPR of Rh nanostructures in areas such as ultraviolet absorption and optical detectors.

关 键 词：光电子学 局域表面等离激元共振 Rh纳米结构 时域有限差分法 消光光谱 

分 类 号：O484.41[理学—固体物理]