Time：December 13 2021, 2:00PM-3:30PM

Venue： BAQIS Meeting Room 526

Title：Microwave cavities for metrology and physics applications

Host：Renfu Yang, Research Scientist, BAQIS

Abstract：

For past decades, microwave technology has been considered outdated, however microwave still offer opportunities in metrology with ultra-low noise and high-stability sources, which are at least 3 000 better than any other commercially available sources. Recently, with the need of bandwidth optimization in telecommunications and low power requirements, spin research in strong coupling and quantum memories, high-Q dielectric resonators have rejuvenated the field. The present talk will review the microwave experience from Dr Le Floch about the technology transfer from microwave for telecom to physics. He will discuss about electromagnetism in dielectrics and cavities for high-Q resonators, material characterization and low-temperature spectroscopy. He will show how to employ the above for the design of microwave sources and for testing fundamental physics.

About the Speaker：

In 2007, Dr Le Floch graduated from a double badged PhD between France and Australia. Then, he was working as an engineer at XLIM research institute from the French National Centre for Scientific Research (CNRS) in Limoges. In 2008-2014, he was an Australian Research Council postdoctoral national competitive fellowship and then became in 2013 assistant professor located in the School of Physics at the University of Western Australia in Perth. In 2015, he joined the center for gravitational experiments at Huazhong university of science and technology in Wuhan. He was awarded three Young Scientist awards at the conference on precision electromagnetic measurements (CPEM), at the URSI-General Assembly. He published 56 papers and have already an h-index of 15. Thus, in 2014 he became a Fellow of the Australian Institute of Physics and in 2016, he was elevated to IEEE Senior Member.