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Electrically reconfigurable terahertz signal processing devices using liquid metal components

Author

Listed:
  • Kimberly S. Reichel

    (Brown University
    CNR-Istituto Nanoscienze)

  • Nicolas Lozada-Smith

    (Brown University)

  • Ishan D. Joshipura

    (North Carolina State University)

  • Jianjun Ma

    (Brown University)

  • Rabi Shrestha

    (Brown University)

  • Rajind Mendis

    (Brown University)

  • Michael D. Dickey

    (North Carolina State University)

  • Daniel M. Mittleman

    (Brown University)

Abstract

Many applications of terahertz (THz) technology require the ability to actively manipulate a free space THz beam. Yet, although there have been many reports on the development of devices for THz signal processing, few of these include the possibility of electrical control of the functionality, and novel ideas are needed for active and reconfigurable THz devices. Here, we introduce a new approach, based on the integration of electrically actuated liquid metal components in THz waveguides. This versatile platform offers many possibilities for control of THz spectral content, wave fron"ts, polarization, and power flow. We demonstrate two illustrative examples: the first active power-splitting switch, and the first channel add–drop filter. We show that both of these devices can be used to electrically switch THz communication signals while preserving the information in a high bit-rate-modulated data stream.

Suggested Citation

  • Kimberly S. Reichel & Nicolas Lozada-Smith & Ishan D. Joshipura & Jianjun Ma & Rabi Shrestha & Rajind Mendis & Michael D. Dickey & Daniel M. Mittleman, 2018. "Electrically reconfigurable terahertz signal processing devices using liquid metal components," Nature Communications, Nature, vol. 9(1), pages 1-6, December.
    • Handle: RePEc:nat:natcom:v:9:y:2018:i:1:d:10.1038_s41467-018-06463-z
    DOI: 10.1038/s41467-018-06463-z
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    Cited by:

    1. Yang Cao & Kathirvel Nallappan & Guofu Xu & Maksim Skorobogatiy, 2022. "Add drop multiplexers for terahertz communications using two-wire waveguide-based plasmonic circuits," Nature Communications, Nature, vol. 13(1), pages 1-12, December.

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