Characteristic analysis for optical antennas: A generalized equivalent circuit model for nanoparticles

Optical antennas, which are considered for many potential applications, are antennas which work at optical frequencies. At this frequency range, the materials, such as Al, Ag, Au and so on, formerly treated as perfect electric conductor (PEC), now have dispersive and complex permittivity, which comp...

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Bibliographic Details
Published in2016 IEEE International Symposium on Antennas and Propagation (APSURSI) pp. 561 - 562
Main Authors Cao, Ying S., Li Jun Jiang
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.06.2016
Subjects
Antennas
Equivalent circuits
Gold
Integrated circuit modeling
Integrated optics
Optical scattering
Permittivity
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Summary:Optical antennas, which are considered for many potential applications, are antennas which work at optical frequencies. At this frequency range, the materials, such as Al, Ag, Au and so on, formerly treated as perfect electric conductor (PEC), now have dispersive and complex permittivity, which complicates most of the methodologies. In this paper, a generalized equivalent circuit model is developed for nanoantennas not only to deal with the dispersivity of permittivity, but also to provide more physical insight. Several examples are used to benchmark the method.
ISSN:1947-1491
DOI:10.1109/APS.2016.7695989