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Related Experiment Video

Updated: Feb 15, 2026

Determining Membrane Protein Topology Using Fluorescence Protease Protection FPP

Determining Membrane Protein Topology Using Fluorescence Protease Protection FPP

Published on: April 20, 2015

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.

Journal of Physics. Condensed Matter : an Institute of Physics Journal

|January 30, 2018

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.

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Last Updated: Feb 15, 2026

Determining Membrane Protein Topology Using Fluorescence Protease Protection FPP

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Colloidal Synthesis of Nanopatch Antennas for Applications in Plasmonics and Nanophotonics

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Published on: May 28, 2016

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.