Josh is actively researching many aspects of terahertz technology fundamentals and applications. These include many aspects of quantum cascade laser active region design and the physical dynamics that govern these unipolar semiconductor lasers; the development of high power quantum cascade lasers and high precision control of these lasers; the dynamics of QCLs, studied using ultra-fast THz time-domain spectroscopy techniques to gain a great understanding of the important time scales these device; and phase-locking of QCLs to other terahertz sources. He is also interested in the applications of THz radiation to science and industry, particularly applications to solid-state materials. He collaborates nationally and internationally on these projects with groups at University of Cambridge, University College London, London Centre for Nanotechnoloy, Delft, Ecole Normale Supérieure Paris, and others.
Miguel Navarro-Cía
- Reader in TeraHertz Science and Engineering, University of Birmingham
Miguel Navarro-Cía, MEng, MRes, PhD, SMIEEE, SMOSA, MInstP, MEOS, FHEA, received the MEng and PhD degrees in Telecommunication Engineering, and MRes degree in Introduction to Research in Communications from Universidad Pública de Navarra (UPNA), Spain, in 2006, 2010 and 2007, respectively. He is a Reader in TeraHertz Science and Engineering at University of Birmingham, UK, where he leads the Metamaterials and Nanophotonics Group. He is also affiliated with Imperial College London as a Visiting Researcher. Previously, he was a Research & Teaching Assistant at UPNA (2010-2011), a Research Associate at Imperial College London (2011-2012) and University College London (2012) and a Junior Research Fellow at Imperial College London (2012-2015). He worked as a Visiting Researcher at University College London (2013-2015), University of Pennsylvania (2010), Imperial College London (2008, 2009 and 2010), and Valencia Nanophotonics Technology Center (2008). He is the coauthor of 2 book chapters (one of them, ‘Principles of THz generation’, published by Wiley-IEEE Press in 2015), 130+ journal papers, and 300+ conferences papers. He is an editorial board member for IET Microwaves, Antennas & Propagation, Advanced Electromagnetics, Radiophysics and Electronics, and Frontiers in Photonics. His current research interests include theory, technology and applications of (near-field) time-domain spectroscopy/microscopy/imaging, metamaterials, plasmonics, antennas and propagation at millimeter-wave, TeraHertz, and infrared. Outside academia, he became capitalist partner of Tafco Metawireless upon its foundation in 2009; this spin-off enterprise based in Spain is one of the first companies devoted to the commercialization of metamaterials technology worldwide, has currently 16 employees and its 2023 turnover was ~€600k. He is a member of the TeraHertz user group of the British Institute of Non-Destructive Testing whose aim is to promote and advance techniques utilising 0.1 to 10 THz technologies to inspect components, materials and structures, and to recommend standardisation and best practice as appropriate. He is also the co-lead of the Microwaves and TeraHertz Special Interest Group of the UK Metamaterials Network+.
Tim is Chair Professor of Wireless Communications at the University of Sheffield, U.K., where he specialises in wireless physical layer signal processing and energy efficient radio access network design. He is an entrepreneur, being the cofounder and CTO of Supergold Communication Limited (1997-2007), a start-up that participated in the standardisation of IEEE 802.11g. In the framework of Mobile VCE (mVCE), Professor O'Farrell was the Academic Coordinator of the Core 5 Green Radio project (2009-2012) and a leader in establishing energy efficiency as a global research field in wireless communications systems. He was General Chair of the 5th International Workshop on Next Generation Green Wireless Networks (Next-GWiN 2018). He led the UK Research Strategy Community Organisation in Communications, Mobile Computing and Networking (CommNet2), which promoted energy efficient networking as a key research theme. He is a director of the mVCE, a member of the UK5G Climate and Environment Working Group and a member of the DCMS College of Experts. His research interests include the design of energy efficient wireless networks, direct digitisation in multiband receivers, wave form design for wireless transceivers, and software defined radios.
