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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Main Authors: Yuan Mingrui, Li Yanfeng, Lu Yongchang, Zhang Ying, Zhang Ziying, Zhang Xueqian, Zhang Xixiang, Han Jiaguang, Zhang Weili
Format: Article
Language:English
Published: De Gruyter 2019-09-01
Series:Nanophotonics
Subjects:
40
Online Access:https://doi.org/10.1515/nanoph-2019-0191
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spelling 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 AT yuanmingrui highperformanceandcompactbroadbandterahertzplasmonicwaveguideintersection
AT liyanfeng highperformanceandcompactbroadbandterahertzplasmonicwaveguideintersection
AT luyongchang highperformanceandcompactbroadbandterahertzplasmonicwaveguideintersection
AT zhangying highperformanceandcompactbroadbandterahertzplasmonicwaveguideintersection
AT zhangziying highperformanceandcompactbroadbandterahertzplasmonicwaveguideintersection
AT zhangxueqian highperformanceandcompactbroadbandterahertzplasmonicwaveguideintersection
AT zhangxixiang highperformanceandcompactbroadbandterahertzplasmonicwaveguideintersection
AT hanjiaguang highperformanceandcompactbroadbandterahertzplasmonicwaveguideintersection
AT zhangweili highperformanceandcompactbroadbandterahertzplasmonicwaveguideintersection
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