Plenary Speakers

Plenary Sessions Tue. 18 April 2023

Hidetoshi Katori

Department of Applied Physics, Graduate School of Engineering, The University of Tokyo, Bunkyo-Ku, Tokyo 113-8656, Japan.
Quantum Metrology Laboratory, RIKEN, Wako, Saitama 351-0198, Japan.
Space-Time Engineering Research Team, RIKEN, Wako, Saitama 351-0198, Japan.

Theme:”Making optical lattice clocks compact and useful for real-world applications”


An “optical lattice clock” proposed in 2001 benefits from a low quantum-projection noise by simultaneously interrogating many atoms trapped in an optical lattice. The essence of the proposal was an engineered perturbation based on the “magic wavelength” protocol, which has been proven successful up to 10-18 uncertainty. About a thousand atoms enable such clocks to achieve 10-18 stability in a few hours of operation. This superb stability is especially beneficial for chronometric leveling, which determines a centimeter height difference of far distant sites by the gravitational redshift of the clocks. We overview the progress of optical lattice clocks and address recent topics to explore real-world applications of the 18-digit-accurate clocks, including 1) compact optical lattice clocks under development in collaboration with industry partners, 2) demonstration of an on-vehicle optical clock, and 3) our challenge to further improve the stability of the clocks by “longitudinal Ramsey spectroscopy” that allows continuous interrogation of the clock transition.


Hidetoshi Katori is a Professor in the Department of Applied Physics, Graduate School of Engineering, The University of Tokyo, a Chief scientist, Quantum Metrology Laboratory, RIKEN, and a Team Leader of Space-Time Engineering Research Team, RIKEN Center for Advanced Photonics. His research interests cover Atom Molecular and Optical Physics and Quantum Metrology. He proposed an optical lattice clock in 2001 and demonstrated the clocks with a fractional uncertainty of 10^(-18) in 2014. He is exploring novel applications enabled by such highly accurate atomic clocks. He is the recipient of a European Time and Frequency Award (2005), Rabi Award (2008), Japan Academy Award (2015), Leo Esaki Prize (2017), Micius Quantum Prizes (2020), and Breakthrough Prize in Fundamental Physics (2022).

Roman Hvězda

ELI Beamlines Facility, Extreme Light Infrastructure

Theme:The Extreme Light Infrastructure: Prospect of Multidisciplinary Science and Research of Ultra-Intensive and Ultra-Short Laser Pulses


The Extreme Light Infrastructure aims to be the world’s largest and most advanced high-power laser infrastructure and a global technology and innovation leader in high-power, high-intensity, and short-pulsed laser systems. ELI was implemented as a multi-pillar infrastructure in Czechia, Hungary, and Romania.
The ELI Beamlines Facility opened to external users in 2018 with the aim of offering a combination of unique laser sources and their use for generating secondary radiation of X-ray beams and accelerated particles such as electrons, protons, neutrons, muons on demand. ELI Beamlines addresses broad range of scientific communities for multidisciplinary applications in molecular, biomedical and material sciences, physics of dense plasmas, dense matter, laboratory astrophysics. In addition, the physics will utilize its high-power, high-repetition focused-rate lasers for high-field physics experiments with intensities of about 1023 W/cm2, investigating exotic plasma physics, and non-linear QED effects.


Roman Hvězda is ELI Beamlines Facility Director and Deputy Director of the Institute of Physics for ELI and HiLASE projects Roman has a mixed education background in engineering and economics from Czechia (Czech Technical University), Germany (RWTH Aachen) and Japan (Young leader program, National Graduate Institute for Policy Studies).
He worked in Switzerland and Czechia in technology companies. Roman was involved in formulating educational and research policy at the Czech Ministry of Education, Youth and Sports from 2006 to 2010. Roman has extensive experience in managerial and advisory positions, particularly with projects in the field of research and development.
His professional interests include the topic of cooperation between research institutions and the private sector, knowledge and technology transfer and the management of large-scale research organizations. Roman has joined ELI Beamlines project in 2010.

Plenary Sessions Wed. 19 April 2023

Hiroshi Mukawa

Sony Group Corporation

Theme:The Metaverse and XR Technologies


The metaverse has become a hot topic recently although its definition is still vague and subjective. Some say it’s a gaming or communication space using avatars on the internet, others say it’s a fusion of the physical world with digital objects. At this point, all of these are correct, and the metaverse has an extensive scope.
If you look at individual use cases, however, many of them have been around for a while. In this case, what can we expect from the metaverse going forward? One of them is the unprecedented experience of immersion in a virtual space and coexistence with a virtual object, and the tools which make the experience possible are XR technologies. This talk introduces some of the XR-related technologies we are developing from the viewpoint of the XR workflow consisting of content creation, distribution, sensing and recognition, and output.


Hiroshi Mukawa is a corporate distinguish engineer at Sony Group Corporation and has been developing and commercializing AR head-mounted displays (HMDs) for nearly 20 years. In 2004, he started his research on holographic waveguide technology and commercialized the world’s first waveguide-based optical see-through closed caption glasses in 2012. Hiroshi currently serves as an executive committee member of the SPIE AR/VR/MR conference. He has over 150 registered patent families related to optics and mechanics in the fields of AR HMDs and optical disc storage. He received his M.E. degree in applied physics from Kyoto University and an M.S. degree in electrical engineering from Stanford University.



Theme:IOWN (Innovative Optical and Wireless Network): concept and implementation (Tentative)



Jason M. Eichenholz

Luminar Technologies Inc.

Theme:How chip level up innovation unlocks LiDAR performance to drive the next generation of vehicle autonomy and safety systems


This talk will discuss the impact and challenges in implementing reliable active advanced driver assistance and autonomy systems and how LiDAR is the key enabler to realize the potential of these systems. We are still in the early stages of unlocking the potential of lidar technology to simultaneously enable both the next generation of vehicle safety and automated driving capabilities. The talk will cover how Luminar started from a “chip level up” component innovation strategy which drove the system design, architecture choices and industrialization processes to fuel a technological paradigm shift in 3-D sensing. In addition, system requirements, challenges, and innovation gaps in sensing and imaging for the future of self-driving vehicles will be explored.


Jason Eichenholz Ph.D. is a serial entrepreneur, executive and recognized pioneer in laser and optics enabled innovation, product development and commercialization. Over the past two decades he has founded and exited multiple companies that combined raised over a billion dollars of investor funding. Luminar Technologies went public on Nasdaq in December 2020. Eichenholz has led the development of hundreds of millions of dollars of revolutionary products that have enabled a variety of applications from autonomous vehicles, battlefield explosives detection, early cancer detection, new drug delivery systems and environmental studies on earth and, the moon and Mars. Eichenholz holds more than seventy-five U.S. patents and is a fellow of SPIE, the international society for optics and photonics, as well as a fellow of the Optica. Eichenholz has a M.S. and Ph.D in Optical Science and Engineering from CREOL at the University of Central Florida and a B.S. in Physics from Rensselaer Polytechnic Institute.