Buried Effects of Surface Plasmon Resonance Modes for Periodic Metal–Dielectric Nanostructures Consisting of Coupled Spherical Metal Nanoparticles with Cylindrical Pore Filled with a Dielectric

Plasmonic spectrum on 1D and 2D periodic arrays of rod-shape metal nanoparticle pairs with different core patterns for biosensor and solar cell applications

“…The positive-negative charged pairs for Ag-shells simultaneously distributes on the inner and outer surfaces of MNPs, it can be regarded as many dipole pairs at the symmetry positions. Thus, the near field patterns arising from cases 2-7 can be understood as a strong dipolar excitation and that covers the inner and outer surfaces of MNPs, where equal sign charges occur at opposite sides of the MNP surface [2,[7][8][9]. In addition, the anti-symmetric branches correspond to patterns of oscillation of opposite signs along the inner and outer MNP surfaces.…”

“…The parameters used in the simulations are listed in the inset of the figure. These values have been chosen according to our previous research [7,8,17,18] and extended simulations. Referring to figure 1, L, P and g are the rod length, period length (P x along x-axis and P y along yaxis) and gap distance between two adjacent rods, respectively.…”

“…These MNPs mainly can be applied to sense the biological nanoparticles [5,6], and also to absorb light in solar cells [7]. Tunable peak resonance wavelength (λ res ) can be varied by sizes, shapes and filling media of MNPs [8]. There are several numerical and experimental works on a single or a pair of MNPs [11][12][13][14], these studies focus on strong local field enhancements and anisotropy in the scattering and absorption spectra [9,10].…”

Hollow metal island films as plasmonic sensors produced by galvanic replacement

“…In order to explain the strong sensitivity increase for solution volumes above 700 µl, the presence of a pinhole on the particle top (fourth column) and, especially, of multiple holes on the particle sides has to be taken into account (fifth column). It has been reported that the presence of surface openings is critical to boost the sensitivity of hollow nanoparticles [5] due to the surface charge redistribution on the regions around the pinholes [43] and the larger available contact surface between particle and embedding medium. Yet, in order to obtain SF values close to the one measured for the sample treated with 1500 µl the pinhole size needs to be much larger than the one suggested by electron micrographs.…”

Interference-Induced Broadband Absorption Enhancement for Plasmonic-Metal@Semiconductor Microsphere as Visible Light Photocatalyst

“…The finite element method (FEM) is commonly adopted to analyze the plasmonic effect of metal NPs/nanostructures . FEM is able to accurately compute not only the SPR absorption/scattering spectra but also the field distribution for either a single particle or a well-defined periodical structure, − regardless of its material compositions (e.g., can be pure metal or metal/semiconductor composite). With proper modification, our recent efforts have shown that even the quantum plasmon effect can be included in FEM simulation. , Nowadays, the study of SPR using FEM is widely accepted in many research fields such as sensing, optical-modulator, photocatalysis, and the solar cell, among others.…”