Terahertz topological photonics for on-chip communication

The realization of integrated, low-cost and efficient solutions for high-speed, on-chip communication requires terahertz-frequency waveguides and has great potential for information and communication technologies, including sixth-generation (6G) wireless communication, terahertz integrated circuits,...

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Main Authors: Yang, Yihao, Yamagami, Yuichiro, Yu, Xiongbin, Pitchappa, Prakash, Webber, Julian, Zhang, Baile, Fujita, Masayuki, Nagatsuma, Tadao, Singh, Ranjan
Other Authors: School of Physical and Mathematical Sciences
Format: Article
Language:English
Published: 2020
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Online Access:https://hdl.handle.net/10356/138529
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-1385292023-02-28T19:26:00Z Terahertz topological photonics for on-chip communication Yang, Yihao Yamagami, Yuichiro Yu, Xiongbin Pitchappa, Prakash Webber, Julian Zhang, Baile Fujita, Masayuki Nagatsuma, Tadao Singh, Ranjan School of Physical and Mathematical Sciences Science::Physics::Optics and light Photonic Crystals Photonic Devices The realization of integrated, low-cost and efficient solutions for high-speed, on-chip communication requires terahertz-frequency waveguides and has great potential for information and communication technologies, including sixth-generation (6G) wireless communication, terahertz integrated circuits, and interconnects for intrachip and interchip communication. However, conventional approaches to terahertz waveguiding suffer from sensitivity to defects and sharp bends. Here, building on the topological phase of light, we experimentally demonstrate robust terahertz topological valley transport through several sharp bends on the all-silicon chip. The valley kink states are excellent information carriers owing to their robustness, single-mode propagation and linear dispersion. By leveraging such states, we demonstrate error-free communication through a highly twisted domain wall at an unprecedented data transfer rate (exceeding ten gigabits per second) that enables real-time transmission of uncompressed 4K high-definition video (that is, with a horizontal display resolution of approximately 4,000 pixels). Terahertz communication with topological devices opens a route towards terabit-per-second datalinks that could enable artificial intelligence and cloud-based technologies, including autonomous driving, healthcare, precision manufacturing and holographic communication. NRF (Natl Research Foundation, S’pore) MOE (Min. of Education, S’pore) Accepted version 2020-05-07T14:05:44Z 2020-05-07T14:05:44Z 2020 Journal Article Yang, Y., Yamagami, Y., Yu, X., Pitchappa, P., Webber, J., Zhang, B., ... Singh, R. (2020). Terahertz topological photonics for on-chip communication. Nature Photonics. doi:10.1038/s41566-020-0618-9 1749-4893 https://hdl.handle.net/10356/138529 10.1038/s41566-020-0618-9 2-s2.0-85083799148 en MOE2017-T2-1-110 MOE2018-T2-1-022(S) MOE2016-T3-1-006(S) NRF2016-NRF-ANR004 Nature Photonics © 2020 Macmillan Publishers Limited, part of Springer Nature. All rights reserved. This paper was published in Nature Photonics and is made available with permission of Macmillan Publishers Limited, part of Springer Nature. application/pdf
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic Science::Physics::Optics and light
Photonic Crystals
Photonic Devices
spellingShingle Science::Physics::Optics and light
Photonic Crystals
Photonic Devices
Yang, Yihao
Yamagami, Yuichiro
Yu, Xiongbin
Pitchappa, Prakash
Webber, Julian
Zhang, Baile
Fujita, Masayuki
Nagatsuma, Tadao
Singh, Ranjan
Terahertz topological photonics for on-chip communication
description The realization of integrated, low-cost and efficient solutions for high-speed, on-chip communication requires terahertz-frequency waveguides and has great potential for information and communication technologies, including sixth-generation (6G) wireless communication, terahertz integrated circuits, and interconnects for intrachip and interchip communication. However, conventional approaches to terahertz waveguiding suffer from sensitivity to defects and sharp bends. Here, building on the topological phase of light, we experimentally demonstrate robust terahertz topological valley transport through several sharp bends on the all-silicon chip. The valley kink states are excellent information carriers owing to their robustness, single-mode propagation and linear dispersion. By leveraging such states, we demonstrate error-free communication through a highly twisted domain wall at an unprecedented data transfer rate (exceeding ten gigabits per second) that enables real-time transmission of uncompressed 4K high-definition video (that is, with a horizontal display resolution of approximately 4,000 pixels). Terahertz communication with topological devices opens a route towards terabit-per-second datalinks that could enable artificial intelligence and cloud-based technologies, including autonomous driving, healthcare, precision manufacturing and holographic communication.
author2 School of Physical and Mathematical Sciences
author_facet School of Physical and Mathematical Sciences
Yang, Yihao
Yamagami, Yuichiro
Yu, Xiongbin
Pitchappa, Prakash
Webber, Julian
Zhang, Baile
Fujita, Masayuki
Nagatsuma, Tadao
Singh, Ranjan
format Article
author Yang, Yihao
Yamagami, Yuichiro
Yu, Xiongbin
Pitchappa, Prakash
Webber, Julian
Zhang, Baile
Fujita, Masayuki
Nagatsuma, Tadao
Singh, Ranjan
author_sort Yang, Yihao
title Terahertz topological photonics for on-chip communication
title_short Terahertz topological photonics for on-chip communication
title_full Terahertz topological photonics for on-chip communication
title_fullStr Terahertz topological photonics for on-chip communication
title_full_unstemmed Terahertz topological photonics for on-chip communication
title_sort terahertz topological photonics for on-chip communication
publishDate 2020
url https://hdl.handle.net/10356/138529
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