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Electronic metadevices for terahertz applications

Author

Listed:
  • Mohammad Samizadeh Nikoo

    (École Polytechnique Fédérale de Lausanne (EPFL)
    ETH Zurich)

  • Elison Matioli

    (École Polytechnique Fédérale de Lausanne (EPFL))

Abstract

The evolution of electronics has largely relied on downscaling to meet the continuous needs for faster and highly integrated devices1. As the channel length is reduced, however, classic electronic devices face fundamental issues that hinder exploiting materials to their full potential and, ultimately, further miniaturization2. For example, the carrier injection through tunnelling junctions dominates the channel resistance3, whereas the high parasitic capacitances drastically limit the maximum operating frequency4. In addition, these ultra-scaled devices can only hold a few volts due to the extremely high electric fields, which limits their maximum delivered power5,6. Here we challenge such traditional limitations and propose the concept of electronic metadevices, in which the microscopic manipulation of radiofrequency fields results in extraordinary electronic properties. The devices operate on the basis of electrostatic control of collective electromagnetic interactions at deep subwavelength scales, as an alternative to controlling the flow of electrons in traditional devices, such as diodes and transistors. This enables a new class of electronic devices with cutoff frequency figure-of-merit well beyond ten terahertz, record high conductance values, extremely high breakdown voltages and picosecond switching speeds. This work sets the stage for the next generation of ultrafast semiconductor devices and presents a new paradigm that potentially bridges the gap between electronics and optics.

Suggested Citation

  • Mohammad Samizadeh Nikoo & Elison Matioli, 2023. "Electronic metadevices for terahertz applications," Nature, Nature, vol. 614(7948), pages 451-455, February.
  • Handle: RePEc:nat:nature:v:614:y:2023:i:7948:d:10.1038_s41586-022-05595-z
    DOI: 10.1038/s41586-022-05595-z
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    Cited by:

    1. Maximilian Mattes & Mikhail Volkov & Peter Baum, 2024. "Femtosecond electron beam probe of ultrafast electronics," Nature Communications, Nature, vol. 15(1), pages 1-7, December.
    2. Cheng-Hsien Yeh & Wen-Dung Hsu & Bernard Haochih Liu & Chan-Shan Yang & Chen-Yun Kuan & Yuan-Chun Chang & Kai-Sheng Huang & Song-Syun Jhang & Chia-Yen Lu & Peter K. Liaw & Chuan-Feng Shih, 2024. "Low-frequency conductivity of low wear high-entropy alloys," Nature Communications, Nature, vol. 15(1), pages 1-10, December.
    3. Geng-Bo Wu & Jun Yan Dai & Kam Man Shum & Ka Fai Chan & Qiang Cheng & Tie Jun Cui & Chi Hou Chan, 2023. "A universal metasurface antenna to manipulate all fundamental characteristics of electromagnetic waves," Nature Communications, Nature, vol. 14(1), pages 1-14, December.
    4. Takashi Arikawa & Jaeyong Kim & Toshikazu Mukai & Naoki Nishigami & Masayuki Fujita & Tadao Nagatsuma & Koichiro Tanaka, 2024. "Phase-resolved measurement and control of ultrafast dynamics in terahertz electronic oscillators," Nature Communications, Nature, vol. 15(1), pages 1-9, December.

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