Frontiers in Physics (Mar 2022)

Mixed-Resolution High-Q Sensor Based on Hybridized Spoof Localized Surface Plasmons

  • Jiangpeng Wang,
  • Jiangpeng Wang,
  • Jingjing Zhang,
  • Jingjing Zhang,
  • Hao Gao,
  • Hao Gao,
  • Xiaojian Fu,
  • Xiaojian Fu,
  • Di Bao,
  • Di Bao,
  • Tie Jun Cui,
  • Tie Jun Cui

DOI
https://doi.org/10.3389/fphy.2022.850186
Journal volume & issue
Vol. 10

Abstract

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Spoof localized surface plasmons (LSPs) have proven significant advantages in sensing and detection. In this work, we propose a high-Q-factor and high-sensitivity hybridized spoof LSP sensor and a mixed-resolution algorithm. The sensor consists of two concentric inner and outer LSP structures with corrugated rings coupled to each other. The achieved Q-factor is up to 178, and the sensing figure of merit (FoM) is up to 30. Moreover, a mixed-resolution algorithm, combined with multiple resonant peaks, is proposed to enhance the Q-factor and sensing FoM. This algorithm doubles the Q-factor and sensing FoM effectively. This mixed-resolution sensor has a wide range of application prospects in the field of high-frequency on-chip resonators and sensors.

Keywords