polarization converter
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2022 ◽  
Vol 124 ◽  
pp. 111953
Author(s):  
Jiayun Wang ◽  
Rongcao Yang ◽  
Zhaohua Li ◽  
Jinping Tian

Plasmonics ◽  
2022 ◽  
Author(s):  
Fu-yuan Yu ◽  
Xiong-jun Shang ◽  
Wei Fang ◽  
Qing-qing Zhang ◽  
Yan Wu ◽  
...  

2021 ◽  
Author(s):  
Yuanyuan Jiang ◽  
Man Zhang ◽  
Weihua Wang ◽  
Zhengyong Song

Abstract Utilizing the phase transition characteristic of vanadium dioxide, we present a metamaterial configuration to achieve both reflective and transmissive cross-polarization converters. When vanadium dioxide is metal, the design behaves as a reflective cross-polarization converter. It consists of metallic grating, topas spacer, and vanadium dioxide film. Polarization conversion ratio is more than 90% in the frequency range from 4.80 THz to 13.13 THz. When vanadium dioxide is insulator, the design behaves as a transmissive cross-polarization converter using cascaded metallic gratings with rotation angle . High-efficiency broadband cross-polarization wave conversion is achieved in the frequency band of 0.50-4.75 THz. The effects of oblique incidence on reflective and transmissive modes are studied on polarization conversion. The results tell that cross-polarization conversion is better when incident angle is in the range of -. The designed metamaterial may have a certain inspiration for the research of terahertz multifunctional polarization converter.


2021 ◽  
pp. 2101915
Author(s):  
Qi Hu ◽  
Ke Chen ◽  
Na Zhang ◽  
Jianming Zhao ◽  
Tian Jiang ◽  
...  

Author(s):  
Gyeongyeong Lee ◽  
Yeong-Hoon Noh ◽  
In-Gon Lee ◽  
Ic-Pyo Hong ◽  
Jong-Gwan Yook ◽  
...  

Abstract 3D printing using digital light processing (DLP) technology has been studied in various fields because of its ability to create complex shapes through a simple process. In this study, DLP 3D printing was employed in the implementation of the metasurface-based dual-linear polarization converter (DLPC). The unit cell of the metasurface-based DLPC for linear polarization conversion was designed consisting of the upper and lower dipole-pair antennas connected through vias and a shielding layer that electrically shields the antennas from each other, and its fabrication was based on the characterization results of the dielectric properties of the photocurable substrate materials and electrical properties of the conductive materials used for synthesizing the metasurface. The printability evaluation of dipole pairs, vias, and a shielding layer was carried out to implement the detailed structures of the DLPC in 3D printing. The electromagnetic wave transmission characteristics of the 3D-printed 8×8 array DLPC demonstrated an orthogonal polarization conversion, as predicted by the simulation results. This study confirmed that the DLP-based 3D printing technology can go beyond the existing functions of manufacturing objects and can be applied to the implementation of various electronics based on different meta-structures.


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