The frequency dependences of polarizability, absorption and scattering cross sections, and optical radiation efficiency of nanotubes of different metals and different sizes are studied. Expressions for the frequencies of longitudinal and transverse surface plasmon resonances are obtained. The relationship between the theory proposed and the plasmon hybridization model is discussed. The evolution of the polarizability maxima, as well as the absorption and scattering cross sections, upon a change in the geometric parameters and morphology of the core and the shell, is traced.

中文翻译：

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具有有限厚度壁的纳米管中的表面等离子体

研究了不同金属和不同尺寸纳米管的极化率、吸收和散射截面以及光辐射效率的频率依赖性。获得了纵向和横向表面等离子体共振频率的表达式。讨论了所提出的理论与等离子体杂交模型之间的关系。极化率最大值的演变，以及吸收和散射截面，随着核和壳的几何参数和形态的变化，被追踪。