Comparative analysis of cylindrical lenses made of photonic crystals formed from solid and cut metal cylinders
Igor Vladimirovich Donets 1, Alexander Mikhailovich Lerer 1, Merimee Danelyan 1, Svetlana Mechislavovna Tsvetkovskaya 2.
1 Southern Federal University, Rostov-on-Don, Russia.
2 Don State Technical University, Rostov-on-Don, Russia.
Abstract
A photonic crystal composed of small metallic particles compared to the wavelength is a promising candidate for an artificial medium for focusing devices in the radio and optical ranges. The advantages of such a medium include low weight and a significant refractive index. However, a disadvantage of such a medium is anisotropy and the presence of both relative permittivity and magnetic permeability, with a pronounced diamagnetic effect. Particles in the form of thin-walled metallic cylinders of finite length—tubes—are particularly technologically feasible. However, the aforementioned disadvantages are also inherent to them. The diamagnetic effect is particularly pronounced when the polarization of the E vector is perpendicular to the cylinder axis. Using tubes slit with a longitudinal slit, rather than solid ones, significantly reduces the diamagnetic effect and anisotropy. This paper compares the properties of cylindrical lenses formed by solid and slit cylinders.
Speaker
Donets Igor Vladimirovich
Southern Federal University.
Russia
Discussion
Ask question
