报告题目: Diamond for quantum and biological science

报告人: Prof. James Rabeau，Department of Physics and Astronomy，Faculty of Science (Quantum Information Science and Security CORE)，Macquarie University, Sydney

报告时间：11月30日（周二）下午1：40-3：00

报告地点：物理系三楼报告厅（理科楼C-302）

报告摘要:Diamond has been central to a number of new and exciting breakthroughs in quantum and biological science for the past several years. The underpinning feature of diamond that makes this possible is the ability to host bright and optically stable colour centres at room-temperature. Of the hundred or so optical defects in diamond, the nitrogen-vacancy (NV) centre has attracted the most attention primarily for its photo-stability, spin polarised optical transition and long spin coherence time. By combining and exploiting each of these in different ways, landmark demonstrations have been made including single photon emission, spin qubits, magnetometry and bright fluorescent biolabels. In the Quantum Materials and Applications lab (QMApp) at Macquarie University, Sydney, our focus is nanodiamond – from fabrication and processing, to applications. In this talk I will give an overview of our experimental capabilities including fabrication and measurement, and some recent results and possible applications.

报告人简介:James is an Australian Research Council Future Fellow and Associate Professor in the Department of Physics at MQ, and currently leads the QMApp group. His background ranges from diamond chemical vapour deposition and materials science to optics, spectroscopy and single photon sources. He completed his undergraduate degree at the University of Waterloo in Canada and subsequently spent 6 months in the lab of Dr Donna Strickland doing ultrafast laser physics. James then took a position in industry at DALSA Inc., a CCD and CMOS image sensor and camera company. He then decided to take up post-graduate studies, and completed his PhD at Heriot-Watt University in Edinburgh, Scotland, in diamond chemical vapour deposition and plasma spectroscopy. His supervisors were Professor Phil John and Professor John Wilson.

The main interest was to understand the role of C2 in diamond CVD using a fascinating technique called cavity ring-down spectroscopy. For this work James built a spectrometer and measured the concentration of the C2 radical inside a microwave plasma. James was a research fellow at the Micro Analytical Research Centre in the School of Physics at the University of Melbourne in the group of Professor Steven Prawer from 2003 to 2006. In this role James developed a technique to grow single Nickel defects in diamond and a technique to grow diamonds on optical fibres. Some of James' work was patented and now commercialisation is being pursued by QCV (qcvictoria.com ).