研究目的
To study the diffraction of a TM plane electromagnetic wave by a cluster of three self-similar silver nanocylinders with different sizes and analyze the quasi-static plasmon resonances, frequency characteristics of the scattering cross section, and the spatial structure of the field near the cylinders.
研究成果
The study demonstrates that a cluster of three self-similar silver nanocylinders cannot significantly amplify the electric field of an incident plane wave by more than a factor of 10 when real loss in silver is considered. The amplification is primarily observed in the gaps between the cylinders, and the system does not function as an effective nanolens.
研究不足
The study is limited by the quasi-static domain conditions and the consideration of real loss in silver, which restricts the amplification of the electric field at the exit of the cluster to a factor of no greater than 10.
1：Experimental Design and Method Selection:
The study involves the diffraction of a TM plane electromagnetic wave by a cluster of three self-similar silver nanocylinders. Rigorous numerical procedures are employed to analyze quasi-static plasmon resonances.
2：Sample Selection and Data Sources:
The cluster consists of three self-similar silver nanocylinders with different sizes. The study uses numerical simulations based on the discrete source method (DSM) for controlled accuracy.
3：List of Experimental Equipment and Materials:
The primary material is silver nanocylinders with varying diameters. The study relies on numerical simulations rather than physical experiments.
4：Experimental Procedures and Operational Workflow:
The problem is formulated in cylindrical coordinates, and the boundary-value problem for the scalar function representing the z component of the magnetic field is solved numerically.
5：Data Analysis Methods:
The accuracy of the numerical solution is estimated by calculating the residual of the boundary conditions. Frequency dependences of the real and imaginary parts of silver permittivity are calculated using experimental results interpolated with cubic splines.
独家科研数据包，助您复现前沿成果，加速创新突破
获取完整内容
