Power tunneling and rejection from fractal chiral–chiral interface

Abstract

In this article, the reflection and transmission coefficients for a chiral–chiral interface of non-integer dimension has been determined theoretically. In order to realize the so-called fractal chiral–chiral interface, one of the two chiral media, forming the interface, is assumed to be of fractal dimensions. The fields inside the fractal chiral media are expressed using a fractional parameter , which for corresponds to ordinary two-dimensional space and fields so obtained reduce to the original two-dimensional results. Having obtained the fields, the effect of dimension on tunneling and rejection of power from the fractional chiral–chiral interface is investigated. Results are presented, for a circularly polarized incident field, depicting reflected power from the interface with parametric dependence on fractionality of the interface and chirality of the media. As anticipated, the dimension of the interface, apart from the chirality of the media, is shown to have a strong effect on tunneling and rejection of power from the interface. Therefore, fractionality of the interface, in addition to chirality of the media, can be used for controlling the reflected power from an interface.

Keywords:

• fractal
• chiral
• fractional space
• transmission and reflection
• tunneling
• reflected power