Microwave Measurement of Topological Edge States (IMAGE)

Light Publishing Center, Changchun Institute of Optics, Fine Mechanics And Physics, CAS

Microwave Measurement of Topological Edge States

Caption

a, Schematic of the experimental setup. The top plate contains cylindrical holes in square lattice. The probe and source dipole antennas (1 and 2) are inserted into the waveguide through these holes. Three sides of the waveguide are wrapped with metal walls acting as perfect electric conductor (PEC) boundaries. The other side is covered by microwave absorbers. b-e, Measured |Ez| field distribution in photonic lattices. The topological edge states persist from crystalline PTI to amorphous PTI (Glass-like 2).

Credit

by Peiheng Zhou, Xin Ren, Yihao Yang, Haoran Xue, Lei Bi, Longjiang Deng, Yidong Chong, and Baile Zhang

Usage Restrictions

None

License

Licensed content

Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.