David is Head of the School of Physics of the University of Melbourne. Following the completion of his PhD in 1985 David spent 4 years working at Caltech (USA) and the University of Oxford (UK) as a postdoctoral research fellow.
His research expertise is in the field of ion beam physics, particularly in the use of focused ion beams for materials modification and analysis. He has developed single ion implantation techniques for the deterministic doping of semiconductor devices and for charge injection and transport studies. A key outcome to date has been the successful fabrication of a nanoscale device that has demonstrated the control and readout of a single electron spin. This device is being used to test some of the key functions of a revolutionary quantum computer constructed in silicon at CQC2T .
He has been a finalist in the Australian Awards for University Teaching and has published over 200 papers in scientific journals as well as 1 book. He served as President of the Australian Institute of Physics from 2005 to 2006 and is a Fellow of the AIP and the Institute of Physics UK. David has a long term interest in the area of climate change and first introduced the issue into his lectures in 1990. He advocates that the laws of Physics are essential to understand the causes and potential remedies for climate change and is frequently called upon to speak to this in the public arena.