Related Experiment Video
Updated: Nov 16, 2025

Using Microwave and Macroscopic Samples of Dielectric Solids to Study the Photonic Properties of Disordered Photonic Bandgap Materials
Published on: September 26, 2014
Topological One-Way Large-Area Waveguide States in Magnetic Photonic Crystals
Mudi Wang1, Ruo-Yang Zhang1, Lei Zhang1,2,3
1Department of Physics, The Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong 999077, China.
Abstract:
We have theoretically and experimentally achieved large-area one-way transport by using heterostructures consisting of a domain of an ordinary photonic crystal sandwiched between two domains of magnetic photonic crystals. The nonmagnetized domain carries two orthogonal one-way waveguide states which have amplitude uniformly distributed over a large area. We show that such one-way waveguide states can be used to abruptly narrow the beam width of an extended state to concentrate energy, and the transport is robust against different kinds of defects and imperfections. They are also immune to the Anderson-type localization when large randomness is introduced.
Related Concept Videos
Standing Waves in a Cavity
Plane Electromagnetic Waves I
The EM field is assumed to be a...
The de Broglie Wavelength

