Controlling waveguide modes using $\mathcal{PT}$ transformation media

Authors

HAYRETTİN ODABAŞI

DOI

10.3906/elk-1904-43

Abstract

We study rectangular waveguide modes loaded with parity-time $\left(\mathcal{PT}\right)$ transformation media derived by complex transformation optics (CTO) approach. $\mathcal{PT}$ transformation media are obtained through mirror symmetric complex coordinate transformations resulting in a balanced loss/gain media. It is shown that waveguide modes can be controlled by simply changing the imaginary part of the complex coordinate transformation while not affecting any other characteristic of the waveguide. The field distribution inside the waveguide can either be stretched towards the sides or squeezed at the center of the waveguide by employing different loading configurations. \keywords{Complex transformation optics, waveguides, $\mathcal{PT}$ symmetry}

Keywords

Complex transformation optics, waveguides, $\mathcal{PT}$ symmetry

First Page

458

Last Page

467

Recommended Citation

ODABAŞI, HAYRETTİN (2020) "Controlling waveguide modes using $\mathcal{PT}$ transformation media," Turkish Journal of Electrical Engineering and Computer Sciences: Vol. 28: No. 1, Article 34. https://doi.org/10.3906/elk-1904-43
Available at: https://journals.tubitak.gov.tr/elektrik/vol28/iss1/34