Topological photonics, which focuses on nontrivial forbidden bands while in gapless interfacial states, provides a degree of freedom to realize photonic spin flow at the boundary of topological photonic crystal. The speaker will present a new type of photonic valley crystal that exhibits valley dependent bulk bands. In this talk, several interesting valley-related behaviors will be explored such as photonic valley Hall effect, spin-momentum locking in trivial photonic crystal, robust unidirectional propagation, etc. Valley photonics will open a new route for control of spin and topology.
About the speaker
Prof Jianwen Dong received his BS in Physics and PhD in Optics from Sun Yat-sen University in 2003 and 2007 respectively. He then joined his alma mater and is currently the Professor of Physics and Engineering. His areas of research include topological photonics, zero-index materials and 3D techniques. He has been awarded the “Excellent Young Scientists Fund” from the National Natural Science Foundation of China.
The seminar is free and open to all. Seating is on a first-come, first-served basis.
