Linear Polarization Conversion Based on Symmetry‐Breaking in an Electromagnetically Induced Transparency Structure

Author:

Di Cheng‐Zhe1ORCID,Fang Jiu‐Kai1,Lin Yu‐Wen1,Sun Kai‐Xiang1,Liu Yue‐Yang1,Zhang Shan1,Shi Sheng‐Nan1,Shi Yan‐Peng1ORCID

Affiliation:

1. School of Microelectronics Shandong University Jinan 250100 P. R. China

Abstract

AbstractTraditional polarization converters suffer from drawbacks such as significant thickness and high losses, which limit their practical applications. This study introduces a novel metamaterial structure that combines electromagnetically induced transparency (EIT) with linear polarization conversion to overcome these limitations. By harnessing the properties of EIT, this structure achieves low‐loss polarization conversion. The mechanism behind this is the generation of an EIT effect through the coupling of the light and dark modes. Additionally, this study focuses on introducing a slight vertical polarization symmetry disruption and inducing the excitation of small components within the dipole of the EIT structure to achieve close‐to‐complete cross‐polarization conversion. The effect of asymmetry on the polarization conversion rate is also explored. This study offers an innovative approach to designing low‐loss polarization converters utilizing EIT technology.

Funder

National Natural Science Foundation of China

Natural Science Foundation of Shandong Province

Fundamental Research Fund of Shandong University

Publisher

Wiley

Subject

General Physics and Astronomy

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