Surface Plasmons in a Nanotube with a Finite-Thickness Wall

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 relati...

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Bibliographic Details
Published in:Physics of metals and metallography 2022, Vol.123 (1), p.7-15
Main Authors: Korotun, A. V., Karandas, Ya. V.
Format: Article
Language:English
Subjects:
Absorption
Chemistry and Materials Science
Electrical and Magnetic Properties
Electromagnetic fields
Light
Materials Science
Metallic Materials
Nanotubes
Optical properties
Optical radiation
Plasmons
Scattering cross sections
Surface chemistry
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Summary: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.
ISSN:0031-918X
1555-6190
DOI:10.1134/S0031918X22010070