
Manfred Thumm
Affiliation: Institute for Pulsed Power and Microwave Technology (IHM) Karlsruhe Institute of Technology (KIT) Karlsruhe, Germany
Title of speech: The Gyrotron at 60: historical overview
TBA

Richard Saykally
Affiliation: University of California, Berkeley
Title of speech: THz spectroscopic properties of water molecules
TBA

Federico Capasso (Tentative)
Affiliation: Harvard John A. Paulson School of Engineering and Applied Sciences Harvard University Cambridge, MA, USA
Title of speech: QC lasers
TBA

Xi-Cheng Zhang
Affiliation: The Institute of Optics, University of Rochester, United States
Title of speech: THz photonics
TBA

George Neil
Affiliation: Thomas Jefferson National Accelerator Facility, Newport News, United States
Title of speech: Shared talk on FELs (with Andrea Doria)
TBA

Andrea Doria
Affiliation: Fusion and Nuclear Dept ENEA Frascati, Rome, Italy
Title of speech: Shared talk on FELs (with George Neil)
TBA

Michael von Ortenberg
Affiliation: Institute of Physics Humboldt University of Berlin Berlin, Germany
Title of speech: FIR and Submm spectroscopy
TBA

Jean Leotin
Affiliation: Institute of Electronics Microelectronics and Nanotechnology UMR CNRS 8520, Lille University, France
Title of speech: Shared talk with Terry Parker: Magneto-spectroscopy of condensed matter
TBA

Terry Parker
Affiliation: University of Essex, United Kingdom
Title of speech: Shared talk with Jean Leotin: Magneto-spectroscopy of condensed matter
Terry Parker is Emeritus Professor of Physics at the University of Essex in Colchester, UK, where he was Professor of Physics from 1991 until his retirement in 2005, and he is a Fellow of the Institute of Physics (IOP). He received the BSc and PhD degrees from the University of London, and for the first 25 years of his career he worked at various colleges in the University of London, apart from periods of a year or two at Northern Electric Research Labs in Ottawa, Ontario, Guest Worker at the National Physical Laboratory in Teddington, UK, the Battelle Memorial Institute in Geneva, and Senior Fulbright Scholar and Visiting Professor of Physics at Northeastern University in Boston, MA. He has also been Visiting Professor of Physics in Cardiff and at several universities in China.
His research was focused on novel aspects of Fourier transform spectroscopy, such as dispersive Fourier transform spectroscopy, (DFTS), attenuated total reflection spectroscopy (ATR), and polarised oblique incidence reflection spectroscopy, which he used to study bulk, surface and interface phonon, plasmon and magnetic modes in a wide range of solids. These included simple ionic solids, bulk and low dimensional semiconductors, ferroelectrics, insulating and conducting magnetic materials (which require radically different experimental approaches), and wire grids for use as optical components in polarising interferometers and other far infrared applications. He has published about 225 papers on this work.
In the UK he was a member of the committee of the Spectroscopy Group of the IOP from 1978-1987, and chair from 1983-1987. In this conference series, he has been conference chair twice in Colchester, co-chair in Cardiff, chair of the IOC from 2002 to 2005, chair of the Kenneth J Button Prize Committee for 15 years, and is chair of the 50 Year Anniversary Committee at this conference. He received a commendation from the then Institution of Electrical Engineers (IEE) in 1982 for developing a communication aid to enable people with lock-in syndrome (total paralysis) to operate a computer by blinking, a project unrelated to his professional work, but using techniques he had acquired along the way, a UK National Physical Laboratory Metrology Award in 1987 for proposing a method for the absolute measurement of reflectivity, and he has received the Kenneth J Button Prize and the Exceptional Service Award from this conference community.

Fritz Keilmann
Affiliation: Fakultät für Physik & Center for NanoScience (CeNS) Ludwig-Maximilians-Universität München, Germany
Title of speech: THz spectroscopy
TBA

Antti Räisänen
Affiliation: MilliLab, Department of Electronics and Nanoengineering, Aalto University, Espoo, Finland
Title of speech: Start of mm-wave and THz research in Finland
Antti V. Räisänen is Professor Emeritus at Aalto University, where he served as a Professor of Radio Engineering from 1987 until his retirement in 2018. He received his Doctor of Science (Tech.) in electrical engineering from Helsinki University of Technology (now Aalto University) in 1981. During his career, Prof. Räisänen supervised 56 doctoral students and authored or co-authored over 500 scientific papers and seven books, including Radio Engineering for Wireless Communication and Sensor Applications (Artech House 2003) and Semiconductor Terahertz Technology: Devices and Systems at Room Temperature Operation (Wiley 2015).
He was a visiting Scientist and Professor with the Five College Radio Astronomy Observatory and the University of Massachusetts, University of California, Berkeley, Jet Propulsion Laboratory and California Institute of Technology, Chalmers University of Technology, Paris Observatory and University of Paris, and Universidad Carlos III de Madrid.
A Fellow of IEEE and Antenna Measurement Techniques Association, he has received numerous prestigious awards, including two Decorations from the President of Finland: Knight First Class of the Order of the White Rose of Finland (2001) and Commander of the Order of the Lion of Finland (2017), and an Honorary Doctorate from Universidad Carlos III de Madrid.
In addition to his academic contributions, Prof. Räisänen is a dedicated marathon runner with 185 marathons completed, including winning a silver medal in the Finnish Veterans’ National Championship Marathon in 2020.