基于含时密度泛函理论的表面等离激元研究进展

张红; 尹海峰; 张开彪; 林家和

doi:10.7498/aps.64.077303

物理学报

基于含时密度泛函理论的表面等离激元研究进展

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张红, 尹海峰, 张开彪, 林家和. 2015: 基于含时密度泛函理论的表面等离激元研究进展, 物理学报, null(7): 077303. doi: 10.7498/aps.64.077303

引用本文:

张红, 尹海峰, 张开彪, 林家和. 2015: 基于含时密度泛函理论的表面等离激元研究进展, 物理学报, null(7): 077303. doi: 10.7498/aps.64.077303

Zhang Hong, Yin Hai-Feng, Zhang Kai-Biao, Lin Jia-He. 2015: Progress of surface plasmon research based on time-dependent density functional theory, Acta Physica Sinica, null(7): 077303. doi: 10.7498/aps.64.077303

Citation:

Zhang Hong, Yin Hai-Feng, Zhang Kai-Biao, Lin Jia-He. 2015: Progress of surface plasmon research based on time-dependent density functional theory, Acta Physica Sinica, null(7): 077303. doi: 10.7498/aps.64.077303

基于含时密度泛函理论的表面等离激元研究进展

四川大学物理科学与技术学院，成都 610065; 高能量密度物理及技术教育部重点实验室，成都 610065

Progress of surface plasmon research based on time-dependent density functional theory

摘要: 纳米粒子的局域表面等离激元(LSP)由于其新颖的光学特性成为目前国内外研究的热点之一。本文利用含时密度泛函理论(TDDFT)对金属团簇及石墨烯纳米结构中的等离激元激发及调制的物理本质进行了研究。和宏观大小的材料相比，由于纳米结构的尺寸和量子受限效应，纳米结构的等离激元具有一些不同的特征。在低能共振区，光谱线发生展宽，并且发生劈裂。由于纳米单体间的电磁耦合作用，使聚合的纳米结构表现出了与单体不同的光学性质。这些结果为等离激元的调控提供了坚实的理论指导。
- 表面等离激元 /
- 团簇 /
- 含时密度泛函理论
Abstract: Localized surface plasmon (LSP) of nanoparticles has become one of the world’s research hotspots due to its novel optical properties. Based on the time-dependent density functional theory (TDDFT), this paper studies the physical nature of plasmon excitation which is modulated in metal clusters and graphene nanostructures. Compared with the plasmon in the macroscopic material, the plasmon in nanostructures has some different properties due to the effects of the size and the dimensional confinement. In lower-energy resonance zone, the spectral band is greatly broadened, and the photoabsorption strength line splits. Because of the electromagnetic coupling between the nano-monomers, aggregated nanostructures exhibit different optical properties. For plasmon regulation and control, these results provide a solid theoretical guidance.

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基于含时密度泛函理论的表面等离激元研究进展

四川大学物理科学与技术学院，成都 610065; 高能量密度物理及技术教育部重点实验室，成都 610065

关键词:

摘要: 纳米粒子的局域表面等离激元(LSP)由于其新颖的光学特性成为目前国内外研究的热点之一。本文利用含时密度泛函理论(TDDFT)对金属团簇及石墨烯纳米结构中的等离激元激发及调制的物理本质进行了研究。和宏观大小的材料相比，由于纳米结构的尺寸和量子受限效应，纳米结构的等离激元具有一些不同的特征。在低能共振区，光谱线发生展宽，并且发生劈裂。由于纳米单体间的电磁耦合作用，使聚合的纳米结构表现出了与单体不同的光学性质。这些结果为等离激元的调控提供了坚实的理论指导。

English Abstract

Progress of surface plasmon research based on time-dependent density functional theory

四川大学物理科学与技术学院，成都 610065; 高能量密度物理及技术教育部重点实验室，成都 610065

Keywords:

Abstract: Localized surface plasmon (LSP) of nanoparticles has become one of the world’s research hotspots due to its novel optical properties. Based on the time-dependent density functional theory (TDDFT), this paper studies the physical nature of plasmon excitation which is modulated in metal clusters and graphene nanostructures. Compared with the plasmon in the macroscopic material, the plasmon in nanostructures has some different properties due to the effects of the size and the dimensional confinement. In lower-energy resonance zone, the spectral band is greatly broadened, and the photoabsorption strength line splits. Because of the electromagnetic coupling between the nano-monomers, aggregated nanostructures exhibit different optical properties. For plasmon regulation and control, these results provide a solid theoretical guidance.

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基于含时密度泛函理论的表面等离激元研究进展

Progress of surface plasmon research based on time-dependent density functional theory

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基于含时密度泛函理论的表面等离激元研究进展

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Progress of surface plasmon research based on time-dependent density functional theory

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