Integrated Metasurfaces for Life Science and Biomedical Applications
About the Speaker
Hatice Altug received her Ph.D. in Applied Physics from Stanford University (U.S.) in 2007. She is professor at Ecole Polytechnique since 2013 and leading BioNanoPhotonic Systems Laboratory. Prior to EPFL, she was professor at Boston University from 2007 to 2013. Her research is focused in the application of nanophotonics to life sciences and biomedical fields with the development of biosensing, spectroscopy and bioimaging systems. Prof. Altug is the recipient of numerous awards including European Physical Society Emmy Noether Distinction, Optical Society of America Adolph Lomb Medal, U.S. Presidential Early Career Award for Scientists and Engineers, IEEE Photonics Society Young Investigator Award and Koc University Science Medal. She received European Commission ERC Consolidator and Proof of Concept Grants, U.S. Office of Naval Research Young Investigator Award, U.S. National Science Foundation CAREER Award, Massachusetts Life Science Center New Investigator Award. In 2011, she has been named to Popular Science Magazine's "Brilliant 10" list. She is fellow of Optical Society of America and senior member of SPIE.
Hatice's laboratory web-site: https://www.epfl.ch/labs/bios/
Twitter Handle: @EPFL_altug_lab
Silicon core fibers for nonlinear photonics: Progress and trends
The nascent field of silicon core fibres is attracting increased interest as a means to exploit the excellent optical and optoelectronic functionality of the semiconductor material directly within the fibre geometry. Compared to their planar counterparts, this new class of waveguide retains many advantageous properties of the fibre platforms such as flexibility, cylindrical symmetry, and long waveguide lengths. Furthermore, owing to the robust glass cladding it is also possible to employ standard fibre post-processing procedures to tailor the waveguide dimensions and reduce the optical losses over a broad wavelength range, of particular use for nonlinear applications. This presentation will review progress in the development of nonlinear devices from the silicon core fibre platform and outline exciting future prospects for the field.
About the Speaker
Anna C. Peacock is a Professor of Photonics within the Optoelectronics Research Centre (ORC) at the University of Southampton. She obtained her BSc and MSc in Physics from The University of Auckland (New Zealand), before moving to the ORC to undertake a PhD in Nonlinear Fibre Optics. She was subsequently awarded a Royal Academy of Engineering Research Fellowship, in recognition of her pioneering work on fiberized semiconductor devices. Anna now heads the Nonlinear Semiconductor Photonics group, where the focus of her research is on the design and development of novel semiconductor waveguides. She is a fellow of the Optical Society (FOSA), the IEEE Photonics Society (FIEEE), and the Institute of Physics (FInstP). She is currently serving as a Deputy Director of the ORC, responsible for the Photonics Systems, Circuits and Sensors group.
Associate professor at the Department of Physics
University Sapienza of Rome, Italy
Photonic spin glasses: from fundamentals to combinatorial optimization and machine learning
Nonlinear and disordered photonic systems exhibit intricate dynamics, encompassing extreme events like rogue waves and non-trivial statistical behaviors. Remarkably, the application of spin-glass theory provides a fitting theoretical framework to elucidate the complexities inherent in these nonlinear optical systems. Experiments involving disordered lasers and nonlinear optical propagation have unveiled direct evidence of Replica Symmetry-Breaking transitions, a pivotal prediction of the spin-glass theory that had eluded confirmation for decades.
While spin-glass theory has found prominence in modern machine learning, combinatorial optimizations, and artificial intelligence, its interdisciplinary connections with photonic systems present a compelling opportunity. We explore the potential to harness these connections to develop innovative non von Neumann devices tailored for large-scale computing.
An introductory review of photonic spin glasses theory and experiments is presented alongside new findings that pave the way toward a new generation of computing devices demonstrating superior scalability compared to existing quantum annealers and Ising machines.
1. N. Ghofraniha, et al., Experimental evidence of replica symmetry breaking in random lasers, Nature Communications 6, 6058 (2015)
2. D. Pierangeli, et al., Large-scale photonic Ising machine by spatial light modulation, Phys. Rev. Lett. 122, 213902 (2019)
3. M. Calvanse Strinati, et al., Hyperscaling in the coherent hyperspin machine, Phys. Rev. Lett. 132 (2024)
About the Speaker
Claudio Conti is associate professor at the Department of Physics of the University Sapienza in Rome. He has been Director of the Institute of Complex Systems of the Italian National Research Council. He received the New Talent Grant from the Research Center Enrico Fermi and a Humboldt fellowship at the Max Planck Institute for the Science of Light. He participated in various research projects, including an ERC Grant, “Light and Complexity,” that led to the first observation of replica symmetry breaking, cited in the Nobel Prize in Physics in 2021. CC authored over 250 articles in top-level journals; his research interests encompass complex systems, machine learning, photonics, and nonlinear optics with applications such as Ising machines and fundamental tests of quantum mechanics.
Claudio's website: complexlight.org