Terahertz multifunctional elements based on all-dielectric metamaterials

被引：0

作者：

Min, Li ^{[1
,2
]}

Wang, Keyuan ^{[1
,2
]}

机构：

[1] School of Physics and Electronic Science, Hunan Institute of Science and Technology, Yueyang,414000, China

[2] Key Laboratory of Hunan Province on Information Photonics and Freespace Optical Communications, Hunan Institute of Science and Technology, Yueyang,414006, China

来源：

Optik | 2025年 / 323卷

基金：

中国国家自然科学基金;

关键词：

Photonic integrated circuits - Photonic integration technology;

D O I：

10.1016/j.ijleo.2025.172225

中图分类号：

学科分类号：

摘要：

A multifunctional terahertz element (MTE) was constructed with a silicon substrate etched with periodically distributed rectangular holes, integrating the functions of a quarter-wave plate, half-wave plate, and reflector. Results show that the quarter-wave plate has a transmittance of over 90 % within a bandwidth exceeding 1 THz, the half-wave plate achieves nearly 100 % polarization conversion efficiency at 5 THz, and the reflector maintains 100 % reflectivity within the frequency range of 13 THz to 21 THz. It suitable for photonic chip integration to achieve polarization control and filtering, with broad applications in sensing, detection, and photonic computing. © 2025 Elsevier GmbH

引用