High-performance and compact broadband terahertz plasmonic waveguide intersection
For terahertz (THz) integrated systems, an intersection between waveguides is inevitable and is often accompanied by considerable crosstalk and loss. Here, we propose and experimentally demonstrate a novel type of crossing with a footprint less than 0.2 × 0.2 mm2 for THz surface plasmon polariton wa...
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Online Access: | https://doi.org/10.1515/nanoph-2019-0191 |
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doaj-14fe9b13374c40a280d2a3ec9b3ca7602021-09-06T19:20:33ZengDe GruyterNanophotonics2192-86062192-86142019-09-018101811181910.1515/nanoph-2019-0191nanoph-2019-0191High-performance and compact broadband terahertz plasmonic waveguide intersectionYuan Mingrui0Li Yanfeng1Lu Yongchang2Zhang Ying3Zhang Ziying4Zhang Xueqian5Zhang Xixiang6Han Jiaguang7Zhang Weili8Center for Terahertz Waves and College of Precision Instrument and Optoelectronics Engineering, Key Laboratory of Optoelectronic Information Technology (Ministry of Education), Tianjin University, Tianjin 300072, ChinaCenter for Terahertz Waves and College of Precision Instrument and Optoelectronics Engineering, Key Laboratory of Optoelectronic Information Technology (Ministry of Education), Tianjin University, Tianjin 300072, ChinaCenter for Terahertz Waves and College of Precision Instrument and Optoelectronics Engineering, Key Laboratory of Optoelectronic Information Technology (Ministry of Education), Tianjin University, Tianjin 300072, ChinaCenter for Terahertz Waves and College of Precision Instrument and Optoelectronics Engineering, Key Laboratory of Optoelectronic Information Technology (Ministry of Education), Tianjin University, Tianjin 300072, ChinaCenter for Terahertz Waves and College of Precision Instrument and Optoelectronics Engineering, Key Laboratory of Optoelectronic Information Technology (Ministry of Education), Tianjin University, Tianjin 300072, ChinaCenter for Terahertz Waves and College of Precision Instrument and Optoelectronics Engineering, Key Laboratory of Optoelectronic Information Technology (Ministry of Education), Tianjin University, Tianjin 300072, ChinaPhysical Science and Engineering Division, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi ArabiaCenter for Terahertz Waves and College of Precision Instrument and Optoelectronics Engineering, Key Laboratory of Optoelectronic Information Technology (Ministry of Education), Tianjin University, Tianjin 300072, ChinaCenter for Terahertz Waves and College of Precision Instrument and Optoelectronics Engineering, Key Laboratory of Optoelectronic Information Technology (Ministry of Education), Tianjin University, Tianjin 300072, ChinaFor terahertz (THz) integrated systems, an intersection between waveguides is inevitable and is often accompanied by considerable crosstalk and loss. Here, we propose and experimentally demonstrate a novel type of crossing with a footprint less than 0.2 × 0.2 mm2 for THz surface plasmon polariton waveguiding. With an optimized crossover structure, the measured loss of the intersection is as low as 0.89 dB/crossing, and the crosstalk is less than −19.06 dB/crossing at 0.55 THz. The proposed crossing structure is compact and has low loss and crosstalk within a broad band, which will pave the way for a wide range of new applications for THz integrated systems.https://doi.org/10.1515/nanoph-2019-0191terahertz near-fieldterahertz spoof surface plasmon polaritionssurface waveswaveguide intersectioncrosstalk40 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Yuan Mingrui Li Yanfeng Lu Yongchang Zhang Ying Zhang Ziying Zhang Xueqian Zhang Xixiang Han Jiaguang Zhang Weili |
spellingShingle |
Yuan Mingrui Li Yanfeng Lu Yongchang Zhang Ying Zhang Ziying Zhang Xueqian Zhang Xixiang Han Jiaguang Zhang Weili High-performance and compact broadband terahertz plasmonic waveguide intersection Nanophotonics terahertz near-field terahertz spoof surface plasmon polaritions surface waves waveguide intersection crosstalk 40 |
author_facet |
Yuan Mingrui Li Yanfeng Lu Yongchang Zhang Ying Zhang Ziying Zhang Xueqian Zhang Xixiang Han Jiaguang Zhang Weili |
author_sort |
Yuan Mingrui |
title |
High-performance and compact broadband terahertz plasmonic waveguide intersection |
title_short |
High-performance and compact broadband terahertz plasmonic waveguide intersection |
title_full |
High-performance and compact broadband terahertz plasmonic waveguide intersection |
title_fullStr |
High-performance and compact broadband terahertz plasmonic waveguide intersection |
title_full_unstemmed |
High-performance and compact broadband terahertz plasmonic waveguide intersection |
title_sort |
high-performance and compact broadband terahertz plasmonic waveguide intersection |
publisher |
De Gruyter |
series |
Nanophotonics |
issn |
2192-8606 2192-8614 |
publishDate |
2019-09-01 |
description |
For terahertz (THz) integrated systems, an intersection between waveguides is inevitable and is often accompanied by considerable crosstalk and loss. Here, we propose and experimentally demonstrate a novel type of crossing with a footprint less than 0.2 × 0.2 mm2 for THz surface plasmon polariton waveguiding. With an optimized crossover structure, the measured loss of the intersection is as low as 0.89 dB/crossing, and the crosstalk is less than −19.06 dB/crossing at 0.55 THz. The proposed crossing structure is compact and has low loss and crosstalk within a broad band, which will pave the way for a wide range of new applications for THz integrated systems. |
topic |
terahertz near-field terahertz spoof surface plasmon polaritions surface waves waveguide intersection crosstalk 40 |
url |
https://doi.org/10.1515/nanoph-2019-0191 |
work_keys_str_mv |
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1717776543064784896 |