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Updated: Aug 13, 2026

Design, Fabrication, and Experimental Characterization of Plasmonic Photoconductive Terahertz Emitters
Published on: July 8, 2013
Electrically Reconfigurable Plasmonic Metasurfaces Based on Phase-Change Materials Sb2S3
Zhuoxuan Han1,2, Chensheng Li1, Tengzhang Liu1
1Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China.
Abstract:
Phase-change materials (PCMs) are widely used in active optical metasurfaces due to their large refractive index contrast and fast and stable phase-change properties. In this paper, an electrically reconfigurable plasmonic metasurface based on the PCM Sb2S3 is proposed to achieve nonvolatile, reversible, and fast optical modulation in the near-infrared range. The designed metasurface can redshift the surface plasmon resonance peak from 1320 to 1480 nm through the phase transition of Sb2S3 from amorphous to crystalline states. In addition, we further experimentally design an electrically reconfigurable platform. In a 30 μm × 30 μm region, the phase state of Sb2S3 with a thickness of 60 nm is successfully and reversibly changed, which contributes to the dynamic modulation of gold gratings. This work has great application potential in reconfigurable optical filters and communication systems and adaptive optical imaging and sensing.
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