On-chip transfer of ultrashort graphene plasmon wave packets using terahertz electronics

IF 33.7 1区工程技术 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC

Nature Electronics Pub Date : 2024-07-17 DOI:10.1038/s41928-024-01197-x

Katsumasa Yoshioka, Guillaume Bernard, Taro Wakamura, Masayuki Hashisaka, Ken-ichi Sasaki, Satoshi Sasaki, Kenji Watanabe, Takashi Taniguchi, Norio Kumada

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Abstract

Ultrashort polariton wave packets, such as terahertz graphene plasmon polaritons, could be used for fast information processing in integrated circuits. However, conventional optical techniques have struggled to integrate the components for controlling polariton signals and have a low conversion efficiency. Here, we show that graphene plasmon wave packets can be generated, manipulated and read out on-chip using terahertz electronics. Electrical pulses injected into a graphene microribbon through an ohmic contact can be efficiently converted into a plasmon wave packet with a pulse duration as short as 1.2 ps and a three-dimensional spatial confinement of 2.1 × 10−18 m3. The conversion efficiency between the electrical pulses and plasmon wave packets can also reach 35% due to the absence of a momentum mismatch. The transport properties of graphene plasmons are studied by changing the dielectric environments, which provides a basis for designing graphene plasmonic circuits. Terahertz electronics that can create and control ultrashort graphene plasmon wave packets with durations as short as 1.2 ps can offer on-chip handling of plasmonic signals.

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利用太赫兹电子技术在芯片上传输超短石墨烯等离子体波包

超短极化子波包（如太赫兹石墨烯等离子体极化子）可用于集成电路中的快速信息处理。然而，传统光学技术难以集成控制极化子信号的元件，而且转换效率较低。在这里，我们展示了石墨烯等离子体波包可以利用太赫兹电子技术在芯片上生成、操纵和读出。通过欧姆接触注入石墨烯微带的电脉冲可以有效地转换成等离子体波包，脉冲持续时间短至 1.2 ps，三维空间约束为 2.1 × 10-18 m3。由于不存在动量失配，电脉冲和等离子体波包之间的转换效率也能达到 35%。通过改变介电环境研究了石墨烯质子的传输特性，为设计石墨烯质子电路提供了基础。

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来源期刊

Nature Electronics Engineering-Electrical and Electronic Engineering

CiteScore

47.50

自引率

2.30%

发文量

159

期刊介绍： Nature Electronics is a comprehensive journal that publishes both fundamental and applied research in the field of electronics. It encompasses a wide range of topics, including the study of new phenomena and devices, the design and construction of electronic circuits, and the practical applications of electronics. In addition, the journal explores the commercial and industrial aspects of electronics research. The primary focus of Nature Electronics is on the development of technology and its potential impact on society. The journal incorporates the contributions of scientists, engineers, and industry professionals, offering a platform for their research findings. Moreover, Nature Electronics provides insightful commentary, thorough reviews, and analysis of the key issues that shape the field, as well as the technologies that are reshaping society. Like all journals within the prestigious Nature brand, Nature Electronics upholds the highest standards of quality. It maintains a dedicated team of professional editors and follows a fair and rigorous peer-review process. The journal also ensures impeccable copy-editing and production, enabling swift publication. Additionally, Nature Electronics prides itself on its editorial independence, ensuring unbiased and impartial reporting. In summary, Nature Electronics is a leading journal that publishes cutting-edge research in electronics. With its multidisciplinary approach and commitment to excellence, the journal serves as a valuable resource for scientists, engineers, and industry professionals seeking to stay at the forefront of advancements in the field.