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Related Experiment Video

Updated: Jan 16, 2026

Demonstration of Spin-Multiplexed and Direction-Multiplexed All-Dielectric Visible Metaholograms
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A Multifunctional Reconfigurable Terahertz Metasurface Enabling Spin-Decoupled Logic Operations and Holography.

Zou Long1, Zhengji Xu1,2

  • 1School of Microelectronics Science and Technology, Sun Yat-sen University, Zhuhai 519000, China.

Materials (Basel, Switzerland)
|September 27, 2025
PubMed
Summary

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Nonlinear Metasurface for Simultaneous Control of Spin and Orbital Angular Momentum in Second Harmonic Generation.

Nano letters·2017

This study introduces a reconfigurable terahertz metasurface capable of light-controlled logic operations and imaging. The device enables spin-decoupled wavefront manipulation for advanced terahertz applications.

Area of Science:

  • Terahertz (THz) photonics
  • Metamaterials and Plasmonics
  • Optical engineering

Background:

  • Metasurfaces offer advanced control over electromagnetic waves.
  • Reconfigurable metasurfaces are crucial for dynamic optical functions.
  • Terahertz technology demands novel components for logic and imaging.

Purpose of the Study:

  • To develop a multifunctional and reconfigurable terahertz metasurface.
  • To demonstrate light-intensity-driven reconfiguration and spin-decoupled wavefront manipulation.
  • To implement terahertz logic modules and spin-dependent holographic imaging.

Main Methods:

  • Hybridization of dual split-ring resonators with photosensitive silicon and metallic elements.
  • Integration of structural and Pancharatnam-Berry phase control mechanisms.
Keywords:
reconfigurable metasurfacespin-decoupled CP controlterahertz logic and holography

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Last Updated: Jan 16, 2026

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  • Full-wave electromagnetic simulations for performance verification.

    • Main Results:

    • Achieved spin-decoupled manipulation of circularly polarized terahertz waves.
    • Successfully implemented two-input/two-output logic modules (OR-XOR and AND-NAND) with verified truth tables.
    • Demonstrated a spin- and intensity-dependent hologram producing four distinct far-field images.
    • Exhibited a strong cross-polarization response (>0.7 amplitude) at ≈0.95 THz.

    Conclusions:

    • The proposed metasurface enables optical, light-intensity-driven reconfiguration.
    • The device provides a viable route towards chip-scale, integrated terahertz logic.
    • This work paves the way for multifunctional terahertz imaging devices.