,Characteristics and mechanism analysis of Fano resonances in H-shaped gold nano-trimer

来源 :中国物理B(英文版) | 被引量 : 0次 | 上传用户:ROVINZ
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
Fano interference of metallic nanostructure is an effective way to reduce the irradiation loss and improve the spectral resolution.A H-shaped gold nano-trimer,which is composed of a gold nanorod and two gold nanorices,is presented to investigate the properties of Fano resonances in the visible spectrum by using the finite element method (FEM).The theoretical analysis demonstrates that the Fano resonance of the H-shaped gold nano-trimer is attributed to the near-field interaction between the bright mode of the nanorice pair and the dark quadrupole mode of the nanorod.Furthermore,by breaking the geometric symmetry of the nanostructure the line-shape spectrum with double Fano resonances of H-shaped gold nano-trimer is obtained and exhibits structure-dependent and medium-dependent characteristics.It is a helpful strategy to design a plasmonic nanostructure for implementing multiple Fano resonances in practical applications.
其他文献
自然条件下,绝大多数植物都可形成菌根,其中丛枝菌根(Arbuscular Mycorrhiza,AM)是最普遍的类型。AM是植物根系和丛枝菌根真菌(Arbuscular Mycorrhizal Fungi,AMF)形成的共生体(S
Ab initio calculations of lattice constants, lattice stabilities of HgX (X=S, Se, Te) at different electronic temperatures (Te) have been performed within the d
新闻报道要及时,因为及时和新闻价值是密不可分的。但是,什么样的新闻才算及时呢?这里牵涉到一个时间性和时效性的问题。现在,不少同志往往把新闻的时间性和时效性混为一谈,
我们太沉湎于俗世rn威廉·华兹华斯rn我们太沉湎于俗世;朝朝暮暮rn在拥有与失去间,耗费人生;rn自然与我们形同陌路;rn心灵在烦扰间迷失,只为了卑污的利禄!rn这海洋,向明月敞
期刊
Molecular dynamics simulation employing the embedded atom method potential is utilized to investigate nanoscale surface diffusion mechanisms of binary heterogen
A series of Zn1-xCdxO thin films have been fabricated on sapphire by pulsed-laser deposition (PLD),successfully.To investigate the effect of Cd concentration on
套袋是提高果实外观品质的有效措施,近年来已在我国主要苹果产区普遍推广。然而,苹果套袋后,由于果实微域环境发生变化,袋内温度高、湿度大、透气性差。这些条件均对果实生长发育