Welcome to the Photonics and Nanoelectronics Lab

Experimental methods linking materials physics and chemistry with devices and circuit design.

Welcome to the Photonics and Nanoelectronics Lab where a team, led by electrical and computer engineering professor, Dayan Ban, carries out world class research.

Converting near-infrared light directly to visible light

Professor Ban joined the Department of Electrical and Computer Engineering at the University of Waterloo in 2005. Since that time, Dr Ban’s group has successfully fabricated prototype hybrid organic/inorganic devices by direct tandem integration and studied the effects of interfacial states on device performance. The devices convert near-infrared light directly to visible light (green) at room temperature.

Designing and fabricating high-performance quantum devices

Professor Ban’s group has been designing, fabricating and characterizing terahertz quantum cascade lasers in pursuit of high-temperature, high-power operation. The terahertz quantum cascade lasers can be used for terahertz spectroscopy, terahertz imaging (T-Ray) and free-space optical communication, which have significant impacts on environmental, biological, medical applications, homeland security, and communication.

Developing ultra-sensitive surface plasmon sensors

Professor Ban’s group is collaborating with other colleagues to develop a compact sensing system that is based on surface plasmon resonance. This system integrates the advanced terahertz technology with a surface plasmon system so as to take advantage of both to offer ultra high sensitivity, high portability and operability. Applications of this system include detection of antibodies and antigens in clinical diagnosis and medical analysis.