Radiation characteristics of a finite-length electric dipole in hyperbolic materials
POSTER
Abstract
The hyperbolic materials exist naturally and can also be fabricated artificially as an assembly of electrically thin parallel sheets or wires. These materials have an axis of symmetry and two permittitivity scalars to characterize the response of electric field in the directions along the symmetry axis and perpendicular to the symmetry axis. However, one of the permittivity scalar has a negative real part while the other a positive real part giving rise to hyperbolic dispersion curve. To understand the radiation characteristics of finite-sized elementary sources, we have derived the expressions of radiation by finite-length electric dipole in hyperbolic materials. The analytical results and radiation patterns are presented.
*The authors thank the Higher Education Commission (HEC) of Pakistan to partially suport this research via grant NRPU 2016-5909.
Publication: 1- A. Hayat and M. Faryad, "Radiation by a finite-length electric dipole in the hyperbolic media," Physical Review A, 101, 013832 (2020).
2- A. Hayat and M. Faryad, "Closed-form expressions for electromagnetic waves generated by a current loop in a uniaxial dielectric medium in the far zone," Journal of Optical Society of America B, 36, F9-F17 (2019).
3- A. Hayat and M. Faryad, "On the radiation from a Hertzian dipole of a finite length in the uniaxial medium," OSA Continuum, 2, 1411-1429 (2019), Erratum: 2, 2855-2855 (2019).
Presenters
-
Muhammad Faryad
- Lahore University of Management Sciences