An all-silicon design of a high-efficiency broadband transmissive terahertz polarization convertor
Abstract Polarization, a fundamental behavior of electromagnetic waves, holds immense potential across diverse domains such as environmental monitoring, biomedicine, and ocean exploration. However, achieving efficient modulation of terahertz waves with wide operational bandwidth poses significant ch...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Springer & Higher Education Press
2023-12-01
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| Series: | Frontiers of Optoelectronics |
| Subjects: | |
| Online Access: | https://doi.org/10.1007/s12200-023-00098-9 |
| _version_ | 1797398150919487488 |
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| author | Xiaohua Xing Die Zou Xin Ding Jianquan Yao Liang Wu |
| author_facet | Xiaohua Xing Die Zou Xin Ding Jianquan Yao Liang Wu |
| author_sort | Xiaohua Xing |
| collection | DOAJ |
| description | Abstract Polarization, a fundamental behavior of electromagnetic waves, holds immense potential across diverse domains such as environmental monitoring, biomedicine, and ocean exploration. However, achieving efficient modulation of terahertz waves with wide operational bandwidth poses significant challenges. Here, we introduce an all-silicon polarization converter designed specifically to operate in the terahertz range of the electromagnetic spectrum. Simulation results demonstrate that the average conversion efficiency of cross-linear waves exceeds 80% across a wide frequency range spanning from 1.00 to 2.32 THz, with the highest conversion efficiency peaking at an impressive 99.97%. Additionally, our proposed structure facilitates linear-to-circular polarization conversion with an ellipticity of 1 at 0.85 THz. Furthermore, by rotating the cross-shaped microstructure, active control over arbitrary polarization states can be achieved. To summarize, the proposed structure offers remarkable flexibility and ease of integration, providing a reliable and practical solution for achieving broadband and efficient polarization conversion of terahertz waves. Graphical abstract |
| first_indexed | 2024-03-09T01:21:35Z |
| format | Article |
| id | doaj.art-8953c67f48be42979acc60a7424651e1 |
| institution | Directory Open Access Journal |
| issn | 2095-2767 |
| language | English |
| last_indexed | 2024-03-09T01:21:35Z |
| publishDate | 2023-12-01 |
| publisher | Springer & Higher Education Press |
| record_format | Article |
| series | Frontiers of Optoelectronics |
| spelling | doaj.art-8953c67f48be42979acc60a7424651e12023-12-10T12:07:34ZengSpringer & Higher Education PressFrontiers of Optoelectronics2095-27672023-12-011611910.1007/s12200-023-00098-9An all-silicon design of a high-efficiency broadband transmissive terahertz polarization convertorXiaohua Xing0Die Zou1Xin Ding2Jianquan Yao3Liang Wu4College of Precision Instrument and Optoelectronics Engineering, Key Laboratory of Optoelectronics Information and Technology (Ministry of Education), Tianjin UniversityCollege of Precision Instrument and Optoelectronics Engineering, Key Laboratory of Optoelectronics Information and Technology (Ministry of Education), Tianjin UniversityCollege of Precision Instrument and Optoelectronics Engineering, Key Laboratory of Optoelectronics Information and Technology (Ministry of Education), Tianjin UniversityCollege of Precision Instrument and Optoelectronics Engineering, Key Laboratory of Optoelectronics Information and Technology (Ministry of Education), Tianjin UniversityCollege of Precision Instrument and Optoelectronics Engineering, Key Laboratory of Optoelectronics Information and Technology (Ministry of Education), Tianjin UniversityAbstract Polarization, a fundamental behavior of electromagnetic waves, holds immense potential across diverse domains such as environmental monitoring, biomedicine, and ocean exploration. However, achieving efficient modulation of terahertz waves with wide operational bandwidth poses significant challenges. Here, we introduce an all-silicon polarization converter designed specifically to operate in the terahertz range of the electromagnetic spectrum. Simulation results demonstrate that the average conversion efficiency of cross-linear waves exceeds 80% across a wide frequency range spanning from 1.00 to 2.32 THz, with the highest conversion efficiency peaking at an impressive 99.97%. Additionally, our proposed structure facilitates linear-to-circular polarization conversion with an ellipticity of 1 at 0.85 THz. Furthermore, by rotating the cross-shaped microstructure, active control over arbitrary polarization states can be achieved. To summarize, the proposed structure offers remarkable flexibility and ease of integration, providing a reliable and practical solution for achieving broadband and efficient polarization conversion of terahertz waves. Graphical abstracthttps://doi.org/10.1007/s12200-023-00098-9BroadbandHigh efficiencyPolarization conversionAll-silicon |
| spellingShingle | Xiaohua Xing Die Zou Xin Ding Jianquan Yao Liang Wu An all-silicon design of a high-efficiency broadband transmissive terahertz polarization convertor Frontiers of Optoelectronics Broadband High efficiency Polarization conversion All-silicon |
| title | An all-silicon design of a high-efficiency broadband transmissive terahertz polarization convertor |
| title_full | An all-silicon design of a high-efficiency broadband transmissive terahertz polarization convertor |
| title_fullStr | An all-silicon design of a high-efficiency broadband transmissive terahertz polarization convertor |
| title_full_unstemmed | An all-silicon design of a high-efficiency broadband transmissive terahertz polarization convertor |
| title_short | An all-silicon design of a high-efficiency broadband transmissive terahertz polarization convertor |
| title_sort | all silicon design of a high efficiency broadband transmissive terahertz polarization convertor |
| topic | Broadband High efficiency Polarization conversion All-silicon |
| url | https://doi.org/10.1007/s12200-023-00098-9 |
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