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Determining Membrane Protein Topology Using Fluorescence Protease Protection FPP

Determining Membrane Protein Topology Using Fluorescence Protease Protection FPP

Published on: April 20, 2015

Non-Hermitian topological light steering.

Han Zhao¹, Xingdu Qiao², Tianwei Wu²

¹Department of Electrical and Systems Engineering, University of Pennsylvania, Philadelphia, PA 19104, USA.

Science (New York, N.Y.)

|September 14, 2019

Summary

This summary is machine-generated.

Researchers demonstrate robust light steering in reconfigurable photonic topological insulators by interfacing non-Hermitian and topological physics. This enables dynamic control of light pathways for high-density data transmission.

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Area of Science:

Photonics
Topological Physics
Non-Hermitian Physics

Background:

Photonic topological insulators offer disorder-immune light transport, crucial for advanced photonic devices.
Flexible reconfiguration of light pathways is essential for high-density routing and meeting data capacity demands.

Purpose of the Study:

To demonstrate arbitrary and robust light steering in reconfigurable non-Hermitian junctions.
To enable dynamic control of topological light pathways within photonic topological insulators.

Main Methods:

Interfacing non-Hermitian and topological physics.
Utilizing reconfigurable non-Hermitian junctions with gain and loss domains.
Guiding chiral topological states at domain interfaces.

Main Results:

Achieved arbitrary and robust light steering.
Demonstrated propagation of chiral topological states at the gain-loss interface.
Enabled dynamic control of robust light transmission links within the bulk.

Conclusions:

The developed non-Hermitian-controlled topological states allow for full utilization of photonic topological insulator footprints.
This approach facilitates flexible reconfiguration of topological light pathways for practical applications in photonics routing.