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Updated: Feb 15, 2026
08:14
Determining Membrane Protein Topology Using Fluorescence Protease Protection FPP
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Topologically-protected one-way leaky waves in nonreciprocal plasmonic structures
S Ali Hassani Gangaraj1, Francesco Monticone1
1School of Electrical and Computer Engineering, Cornell University, Ithaca, NY 14853, United States of America.
Summary
We explored topologically-protected leaky waves on magnetized plasmonic structures. These waves enable robust, unidirectional wave propagation and tunable radiation, paving the way for advanced antenna designs.
Area of Science:
- Physics
- Materials Science
- Electrical Engineering
Background:
- Topological insulators offer unique wave phenomena.
- Magnetized plasmonic structures exhibit nonreciprocal properties.
- Leaky waves radiate energy into the surrounding environment.
Purpose of the Study:
- Investigate topologically-protected unidirectional leaky waves.
- Analyze their nonreciprocal and topological nature.
- Engineer propagation and radiation for advanced functionalities.
Main Methods:
- Theoretical analysis of stratified structures.
- Numerical experiments on magnetized plasma interfaces.
- Exploration of topological leaky mode behavior.
Main Results:
- Demonstrated topologically-protected, backscattering-immune wave propagation.
- Achieved highly directive and tunable radiation.
- Showcased arbitrary re-routing of leaky waves on complex surfaces.
Conclusions:
- Topological leaky modes offer robust wave manipulation.
- Enables novel topological leaky-wave (nano)antennas.
- Potential for future antenna generations at microwave and optical frequencies.
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