All-Dielectric Meta-lens Designed for Photoconductive Terahertz Antennas
We present an all-dielectric meta-lens designed to collimate terahertz waves emitted from a terahertz antenna. The meta-lens is not only thinner than a conventional bulk silicon lens, but also promises to eliminate the use of parabolic mirrors in a terahertz time-domain spectroscopy system. A system...
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| Language: | English |
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IEEE
2017-01-01
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| Series: | IEEE Photonics Journal |
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| Online Access: | https://ieeexplore.ieee.org/document/7967651/ |
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| author | Qing Yu Jianqiang Gu Quanlong Yang Ying Zhang Yanfeng Li Zhen Tian Chunmei Ouyang Jiaguang Han John F. OHara Weili Zhang |
| author_facet | Qing Yu Jianqiang Gu Quanlong Yang Ying Zhang Yanfeng Li Zhen Tian Chunmei Ouyang Jiaguang Han John F. OHara Weili Zhang |
| author_sort | Qing Yu |
| collection | DOAJ |
| description | We present an all-dielectric meta-lens designed to collimate terahertz waves emitted from a terahertz antenna. The meta-lens is not only thinner than a conventional bulk silicon lens, but also promises to eliminate the use of parabolic mirrors in a terahertz time-domain spectroscopy system. A systematic numerical study reveals that the meta-lens exhibits excellent performance in both the emitter and detector modules, converting between the spherical wave of the antennas and the collimated beam. The frequency and alignment dependences of the meta-lens are also investigated to comprehensively map its response characteristics. The all-dielectric meta-lens presented here may pave a way in developing high-performance integrated photoconductive terahertz antenna components. |
| format | Article |
| id | doaj-art-f80b13e17b664a45b0766a23cf4d7397 |
| institution | Matheson Library |
| issn | 1943-0655 |
| language | English |
| publishDate | 2017-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Photonics Journal |
| spelling | doaj-art-f80b13e17b664a45b0766a23cf4d73972025-07-01T23:25:18ZengIEEEIEEE Photonics Journal1943-06552017-01-01941910.1109/JPHOT.2017.27215037967651All-Dielectric Meta-lens Designed for Photoconductive Terahertz AntennasQing Yu0Jianqiang Gu1Quanlong Yang2Ying Zhang3Yanfeng Li4Zhen Tian5Chunmei Ouyang6Jiaguang Han7John F. OHara8Weili Zhang9Center for Terahertz Waves and College of Precision Instrument and Optoelectronics Engineering, Tianjin University, and the Key Laboratory of Optoelectronics Information and Technology, Ministry of Education of China, Tianjin, ChinaCenter for Terahertz Waves and College of Precision Instrument and Optoelectronics Engineering, Tianjin University, and the Key Laboratory of Optoelectronics Information and Technology, Ministry of Education of China, Tianjin, ChinaCenter for Terahertz Waves and College of Precision Instrument and Optoelectronics Engineering, Tianjin University, and the Key Laboratory of Optoelectronics Information and Technology, Ministry of Education of China, Tianjin, ChinaCenter for Terahertz Waves and College of Precision Instrument and Optoelectronics Engineering, Tianjin University, and the Key Laboratory of Optoelectronics Information and Technology, Ministry of Education of China, Tianjin, ChinaCenter for Terahertz Waves and College of Precision Instrument and Optoelectronics Engineering, Tianjin University, and the Key Laboratory of Optoelectronics Information and Technology, Ministry of Education of China, Tianjin, ChinaCenter for Terahertz Waves and College of Precision Instrument and Optoelectronics Engineering, Tianjin University, and the Key Laboratory of Optoelectronics Information and Technology, Ministry of Education of China, Tianjin, ChinaCenter for Terahertz Waves and College of Precision Instrument and Optoelectronics Engineering, Tianjin University, and the Key Laboratory of Optoelectronics Information and Technology, Ministry of Education of China, Tianjin, ChinaCenter for Terahertz Waves and College of Precision Instrument and Optoelectronics Engineering, Tianjin University, and the Key Laboratory of Optoelectronics Information and Technology, Ministry of Education of China, Tianjin, ChinaSchool of Electrical and Computer Engineering, Oklahoma State University, Stillwater, OK, USACenter for Terahertz Waves and College of Precision Instrument and Optoelectronics Engineering, Tianjin University, and the Key Laboratory of Optoelectronics Information and Technology, Ministry of Education of China, Tianjin, ChinaWe present an all-dielectric meta-lens designed to collimate terahertz waves emitted from a terahertz antenna. The meta-lens is not only thinner than a conventional bulk silicon lens, but also promises to eliminate the use of parabolic mirrors in a terahertz time-domain spectroscopy system. A systematic numerical study reveals that the meta-lens exhibits excellent performance in both the emitter and detector modules, converting between the spherical wave of the antennas and the collimated beam. The frequency and alignment dependences of the meta-lens are also investigated to comprehensively map its response characteristics. The all-dielectric meta-lens presented here may pave a way in developing high-performance integrated photoconductive terahertz antenna components.https://ieeexplore.ieee.org/document/7967651/Metamaterialsterahertz radiationlenses. |
| spellingShingle | Qing Yu Jianqiang Gu Quanlong Yang Ying Zhang Yanfeng Li Zhen Tian Chunmei Ouyang Jiaguang Han John F. OHara Weili Zhang All-Dielectric Meta-lens Designed for Photoconductive Terahertz Antennas IEEE Photonics Journal Metamaterials terahertz radiation lenses. |
| title | All-Dielectric Meta-lens Designed for Photoconductive Terahertz Antennas |
| title_full | All-Dielectric Meta-lens Designed for Photoconductive Terahertz Antennas |
| title_fullStr | All-Dielectric Meta-lens Designed for Photoconductive Terahertz Antennas |
| title_full_unstemmed | All-Dielectric Meta-lens Designed for Photoconductive Terahertz Antennas |
| title_short | All-Dielectric Meta-lens Designed for Photoconductive Terahertz Antennas |
| title_sort | all dielectric meta lens designed for photoconductive terahertz antennas |
| topic | Metamaterials terahertz radiation lenses. |
| url | https://ieeexplore.ieee.org/document/7967651/ |
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