Open AccessInvestigation of directivity of the nanoantenna by its inherent resonant states
Author(s) -
Rajan Agrahari,
Hadi K. Shamkhi
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/2015/1/012002
Subject(s) - directivity , resonator , cylinder , dielectric , symmetry (geometry) , refractive index , quality (philosophy) , optics , materials science , physics , acoustics , optoelectronics , geometry , telecommunications , engineering , mathematics , quantum mechanics , antenna (radio)
We present a quasinormal mode (QNM) approach for modeling the nanoantenna and describe the response of localized dielectric cylinder resonators. The inherent resonant states of the dielectric cylinder nanocavity are investigated for modified and reduced geometrical symmetry. We find some modes contributing mainly to the directivity and have a high-quality factor. The variation of the eigenmodes with cylinder height and substrate refractive index has also been investigated.