Limiting amplitude principle and resonances in plasmonic structures with corners: Numerical investigation
Limiting amplitude principle and resonances in plasmonic structures with corners: Numerical investigation
复制标题
带角的等离子体结构中的极限振幅原理和共振:数值研究
DOI:
10.1016/j.cma.2021.114207
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发表时间:
2022
影响因子:
7.2
通讯作者:
Scheid, Claire
中科院分区:
文献类型:
--
作者:
Carvalho, Camille;Ciarlet, Patrick;Scheid, Claire
The limiting amplitude principle states that the response of a scatterer to a harmonic light excitation is asymptotically harmonic with the same pulsation. Depending on the geometry and nature of the scatterer, there might or might not be an established theoretical proof validating this principle. In this paper, we investigate a case where the theory is missing: we consider a two-dimensional dispersive Drude structure with corners. In the non lossy case, it is well known that looking for harmonic solutions leads to an ill-posed problem for a specific range of critical pulsations, characterized by the metal’s properties and the aperture of the corners. Ill-posedness is then due to highly oscillatory resonances at the corners called black-hole waves. However, a time-domain formulation with a harmonic excitation is always mathematically valid. Based on this observation, we conjecture that the limiting amplitude principle might not hold for all pulsations. Using a time-domain setting, we propose a systematic numerical approach that allows to give numerical evidences of the latter conjecture, and find clear signature of the critical pulsations. Furthermore, we connect our results to the underlying physical plasmonic resonances that occur in the lossy physical metallic case.
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影响因子:
2.4
作者:
G. Kriegsmann
通讯作者:
G. Kriegsmann
DOI:
--
发表时间:
2014
期刊:
影响因子:
--
作者:
A. Dhia;L. Chesnel;P. Ciarlet
通讯作者:
P. Ciarlet
影响因子:
0.9
作者:
D. Eidus
通讯作者:
D. Eidus
DOI:
10.1109/metamaterials.2014.6948632
发表时间:
2014
期刊:
2014 8th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics
影响因子:
--
作者:
H. Kettunen;L. Chesnel;H. Hakula;H. Wallén;A. Sihvola
通讯作者:
A. Sihvola
DOI:
10.4171/zaa/1618
发表时间:
2018
期刊:
Zeitschrift für Analysis und ihre Anwendungen
影响因子:
--
作者:
S. Nicaise
通讯作者:
S. Nicaise