Topological states of light and darkness: static, dynamic, and spatiotemporal vortices by Dr. Chen-Ting Liao

In this talk, Dr. Chen-Ting Liao introduced the topology of light – the light carrying orbital angular momentum (OAM). The OAM of light can be static, dynamic, or spatiotemporal. Static OAM of light has been known for three decades and has found numerous applications, from optical trapping, and super-resolution imaging, to tele- and quantum communications. On the contrary, time-varying and spatiotemporal OAM of light are new properties discovered over the past few years. He spoke about how they create and characterize time-varying and spatiotemporal OAM of light [1-4] and their potential future applications. 

Seminar Link: Picoelectrodynamics Theory Network - YouTube