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Updated: Jan 24, 2026

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Published on: July 11, 2025
Scalable and programmable topological transitions in plasmonic Moiré superlattices
Bo Tian1, Xi Zhang2, Ruitao Wu1
1Nanophotonics Research Centre, Shenzhen Key Laboratory of Micro-Scale Optical Information Technology, Institute of Microscale Optoelectronics & State Key Laboratory of Radio Frequency Heterogeneous Integration, Shenzhen University, Shenzhen, China.
Plasmonic Moiré superlattices enable programmable topological transitions. This wavefront engineering approach offers scalable control over topological invariants, advancing quantum technologies and condensed matter physics.
Area of Science:
- Photonics and Quantum Technologies
- Condensed Matter Physics
- Structured Light
Background:
- Topological transitions are crucial for electronics, photonics, and quantum technologies.
- Current methods face limitations in scalability and tunability due to material properties and structural rigidity.
Purpose of the Study:
- To demonstrate plasmonic Moiré superlattices as a platform for programmable, large-range topological transitions.
- To explore wavefront engineering for controlling topological phenomena.
Main Methods:
- Tailoring phases of elementary evanescent waves in hexagonal systems.
- Creating Moiré lattices of optical skyrmions.
- Utilizing theoretical calculations to analyze topological invariants.
Main Results:
- Programmable and scalable evolution of topological invariants in optical skyrmion Moiré lattices.
- Topological invariants range from -58 to +58, tunable via Moiré angle.
- Symmetry constraints revealed an intrinsic link between symmetry and topological quantization, excluding specific values.
Conclusions:
- Plasmonic Moiré superlattices provide a versatile platform for real-space topology control.
- Enables exploration of topological transition mechanisms and critical phenomena.
- Promotes advancements in structured light, photonic computing, and condensed matter physics.
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