META 2021, META'12

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Power flow in the interior and exterior of cylindrical coated nano-particles
Samel Arslanagic

Last modified: 2015-07-04


Electrically small configurations consisting of resonant active coated nano-particles of a circularly cylindrical shape are considered in the case of a magnetic line source excitation at optical frequencies. The active particles are comprised of a canonical gain-impregnated silica nano-core covered concentrically with a silver, gold, or copper nano-shell. Particular attention is devoted to both the direction and the magnitude of the power flow density inside and outside of such particles. The results for the active coated nano-particles are related to those of the corresponding passive designs at optical frequencies, and are further contrasted to the results for the electrically small structures based on epsilon-negative materials at radio frequencies.




Metamaterials; plasmonics; coated nano-particles; power density