Active Spoof Surface Plasmon Polariton Integrated with Thin-Film Schottky Barrier Diodes at Millimeter Wave and Terahertz Frequencies

Haotian Ling, Baoqing Zhang, Pengfei Qian, Mingming Feng, Yiming Wang, Xijian Zhang, Qingpu Wang, Xudong Zou, Yifei Zhang, Aimin Song

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

In this paper, metal-oxide thin-film Schottky barrier diodes (SBDs) are proposed to dynamically manipulate spoof surface plasmon polaritons (SSPPs) at millimeter wave (MMW) and terahertz (THz) frequencies. Bridging the gaps of split ring resonators (SRRs) and electric-field-coupled inductor-capacitor resonators (ELCRs) with planar thin-film SBD structure can actively change the thin-film carrier density within the gaps via forward bias, which manipulates the resonant amplitude of SSPPs at central frequencies consequently. As a demonstration, single-frequency and dual-frequency active SSPP devices with SRRs were fabricated and tested, showing an excellent amplitude modulation and dual-frequency multi-bit modulation capability at MMW frequencies, respectively. Furthermore, the planar thin-film SBD structure was integrated in an ELCR array to verify the feasibility of the proposed modulation method at 0.39 THz. This method greatly promotes the working frequency of the metal-oxide thin-film SBDs, and pave a new way for program-mable SSPPs at MMW and THz frequencies.

Original languageEnglish
Title of host publication2023 IEEE MTT-S International Wireless Symposium, IWS 2023 - Proceedings
PublisherIEEE
ISBN (Electronic)9798350336535
DOIs
Publication statusPublished - 2023
Event2023 IEEE MTT-S International Wireless Symposium, IWS 2023 - Qingdao, China
Duration: 14 May 202317 May 2023

Publication series

Name2023 IEEE MTT-S International Wireless Symposium, IWS 2023 - Proceedings

Conference

Conference2023 IEEE MTT-S International Wireless Symposium, IWS 2023
Country/TerritoryChina
CityQingdao
Period14/05/2317/05/23

Keywords

  • active modulation
  • millimeter wave and terahertz frequencies
  • Schottky barrier diodes
  • spoof surface plasma polaritons
  • thin-film

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