Exploring millimeter and terahertz waves by photonics for communications and measurement

The electromagnetic waves at frequencies from 0.1 THz (100 GHz) to 10 THz is referred to as millimeter (MM) waves and terahertz (THz) waves, which are located between microwaves and infrared light waves, and have remained unutilized for our life. Thanks to tremendous efforts of research and development over two decades, MM/THz technologies have proven lots of capabilities which are not available with conventional microwaves and light waves. In this talk, we describe how efficiently MM/THz waves can be generated, transmitted, and detected by contemporary photonics technologies, and present recent emerging applications including wireless communications and measurement.