LMI Seminar:
The tiniest of structured-features on the largest of laser optics
Dr. Eyal Feigenbaum
The National Ignition Facility and Photon Science,
Lawrence Livermore National Laboratory, Livermore CA
Wednesday December 28th, 2022
13:00-14:00
Light refreshments and drinks will be served at 12:30
Auditorium 011, Engineering Classroom Building, Faculty of Engineering, Tel-Aviv University
Abstract: The National Ignition Facility (NIF) is one of the largest laser systems in the world in terms of both size and energetics. For the optics to meet the requirements of operating such systems, the science of light-matter interaction is being studied and technologies are being developed. In this talk, I will introduce two technologies we are developing for glass surface structuring for advancing light-control in these systems: metasurfaces and light-blocking elements. The demanding requirements for large optical apertures and irradiation durability necessitate taking a unique approach towards structured meta-surfaces, which we will detail and discuss the underlying physics involved. (As time permits) I will detail also how our recent findings of laser damage mechanisms affect the design of laser-machined optical elements that are designed to mitigate damage growth on NIF optics
Bio:
Dr. Eyal Feigenbaum is a staff scientist in the NIF & Photon Science Directorate (at LLNL), conducting and leading research and development of optics technologies for laser systems. He earned his Ph.D. in Electrical Engineering from the Technion (2008). Subsequently, he conducted post-doctoral research on metasurfaces and nano-photonics at the California Institute of Technology, and afterwards joined the LLNL as a staff member in 2011. His areas of expertise include modeling of light-wave propagation in complex media; light-mater interaction; laser-induced damage; and metasurfaces and nano-photonics. He is an OSA Senior Member, has more than 50 refereed publications, and has 9 patents and patent applications.
