Professor of Experimental Physics
University of Cambridge
In the early part of my career, I developed techniques for the molecular beam epitaxial growth of ultra-pure semiconductor devices, which led to highly significant work on electron transport in semiconductor devices including the discovery of ballistic transport in quantum point contacts, the development of single-electron pumps and non-invasive electron detectors.
This work was extended, in collaboration with Toshiba, to the development of single- and entangled-photon pair sources as well as single-photon detectors. In addition to this, and of particular relevance to this grant, I have worked on the development of Terahertz devices including the first terahertz quantum cascade laser, terahertz detectors and modulators.