At EOSAM 2026, as in previous EOSAM conferences, in addition to the conference program including contributed and invited speakers, we wish to provide an additional benefit to all registered attendees in the form of tutorials covering Topical Meeting (TOM) and Focused session topics. These tutorials will take place on Monday, 24 August 2026.

Participation in these tutorials is free for participants registered for the full conference.

More information coming soon.

Patricia Segonds

University Grenoble Alpes (UGA)
NEEL Institut CNRS-UGA
Grenoble, France

Frequency Conversion in Nonlinear Crystals: From Fundamentals to Commercial Devices

The ability to tailor the frequency of light lies at the very core of modern photonics, empowering technologies from harmonic generators to tunable coherent sources. This lecture delves into the physics of frequency conversion in crystals, revealing how spontaneous second-order interactions generate new spectral components of light. We will discuss the roles of crystal symmetry, susceptibility tensors, and matter polarization in governing conversion efficiency, with a focus on second-harmonic generation, sum-frequency generation and spontaneous down-conversion, and optical parametric oscillation. Beyond the theoretical framework, practical aspects such as nonlinear crystals, phase-matching engineering, and characterization techniques will be explored. The lecture will conclude with an overview of state-of-the-art commercial devices and their relevance to photonic applications.

About the Speaker

Patricia Segonds is a Full Professor in the Department of Physics at the University Grenoble Alpes (UGA). She joined the Institut Néel upon its creation. Since 2000, her research has focused on optics and frequency conversion in nonlinear crystals, including their characterization and implementation in optical parametric oscillators. She has co-authored more than 230 publications in peer-reviewed journals and conference proceedings. She teaches practical courses in linear and nonlinear optics and has recorded numerous educational tutorials covering various areas of physics.

Giulio Cerullo

Dipartimento di Fisica, Politecnico di Milano
Milano, Italy

Ultrafast and Nonlinear Photonics with 2D Materials

Layered materials are solids consisting of crystalline sheets with strong in-plane covalent bonds and weak van der Waals out-of-plane interactions. These materials can be easily exfoliated to a single layer, obtaining two-dimensional (2D) materials with radically novel physico-chemical characteristics compared to their bulk counterparts. The field of 2D materials began with graphene and quickly expanded to include semiconducting transition metal dichalcogenides (TMDs). 2D semiconductors exhibit very strong light-matter interaction and exceptionally intense and ultrafast nonlinear optical response, enabling a variety of novel applications in optoelectronics and photonics. Furthermore, stacking 2D materials into heterostructures (HS) offers unlimited possibilities to design new materials tailored for applications. In such HS the electronic structure of the individual layers is well retained because of the weak interlayer van der Waals coupling. Nevertheless, new physical properties and functionalities arise beyond those of their constituent blocks, depending on the type, the stacking sequence and the twist angle of the layers.

This Tutorial will review the key electronic and photonic properties of TMDs and their heterostructures, including strongly bound intralayer excitons, spin-valley locking and valley selectivity. It will also discuss their non-equilibrium properties, such as intralayer exciton formation, their dissociation in HS to form long-lived interlayer excitons, and intervalley scattering processes. It will also discuss the nonlinear optical response of TMDs and approaches to phase match the nonlinear interactions and achieve high conversion efficiencies over unprecedentedly small thicknesses.

About the Speaker

Giulio Cerullo is a Full Professor with the Physics Department, Politecnico di Milano, where he leads the Ultrafast Optical Spectroscopy laboratory. Prof. Cerullo’s research activity concerns on the one hand pushing our capabilities to generate and manipulate ultrashort light pulses, and on the other hand using such pulses to capture the dynamics of ultrafast events in molecular and solid-state systems. He has published over 560 papers which have received >36000 citations (H-index: 96 on Scopus). He is a Fellow of the Optical Society of America, of the European Physical Society and of the Accademia dei Lincei and past Chair of the Quantum Electronics and Optics Division of the European Physical Society. He has received two ERC grants (Advanced Grant in 2012 and Synergy Grant in 2025). He has been General Chair of the conferences CLEO/Europe 2017, Ultrafast Phenomena 2018 and the International Conference on Raman Spectroscopy 2024. In 2023, he received the Quantum Electronics Prize of the European Physical Society. He is the co-founder of two spin-off companies (NIREOS and Cambridge Raman Imaging).

Massimo Giudici

Université Côte d’Azur, Institut de Physique de Nice, Nice, France

Reconfigurable Light in Laser Cavities

Multimode photonics is an emerging research field devoted to the generation and control of complex light states for applications in information processing, photonic computing, sensing, and imaging. In this tutorial, I will review progress toward reconfigurable light emission in laser cavities. This control relies on the concept of dissipative solitons: individually addressable localized structures that appear as intensity peaks in the laser spatial profile or as mode-locked pulses in the temporal output, and that can be used as fundamental building blocks to arbitrarily structure laser light. While past efforts addressed spatial and temporal degrees of freedom separately, I will present recent advances toward unified spatio-temporal control within a single laser system.

About the Speaker

Massimo Giudici is a Full Professor at Université Côte d’Azur, and he conducts his research at the Institut de Physique de Nice. In recent years, his research has focused on spatio-temporal dynamics in semiconductor microcavities and lasers. Prof. Giudici is the author of more than 80 publications in international peer-reviewed journals. He is a Fellow of OPTICA and a Senior Member of IEEE. He served as General Chair of CLEO Europe/EQEC 2019 and as a Board Member of the Quantum Electronics and Optics Division of the European Physical Society (2016–2025). He was Director of the LIA (Laboratoire International Associé) SOLACE from 2017 to 2021 and Deputy Director of the Institut Non Linéaire de Nice from 2012 to 2016.

Anna Peacock

Optoelectronics Research Centre, University of Southampton, Southampton, United Kingdom

Silicon Core Fibres: From Fabrication to Applications

Silicon core fibres are 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. In this tutorial, I review efforts regarding the design, fabrication and optimization of the silicon fibres and outline their potential for applications in areas such as solar harvesting, wearable sensors, and nonlinear signal processing.

About the Speaker

Professor Anna C. Peacock is head of the Nonlinear Semiconductor Photonics Group and a Deputy Director of the Optoelectronics Research Centre (ORC). Her research is focused on developing novel semiconductor waveguides, both fibre and planar technologies, for use in nonlinear optical applications. She has co-authored more than 120 journal articles and is a regular invited speaker at leading photonics conferences. She is a fellow of the Royal Academy of Engineering (FREng), IEEE Photonics Society (FIEEE), Optica (FOSA), and the Institute of Physics (FInstP).

Jacopo Bertolotti

Department of Physics and Astronomy, University of Exeter, Exeter, United Kingdom

Scientific Visualizations: Animating Physics for Science Communication

If an image is worth a thousand words, how many is an animation worth? When is the effort needed to create an animation to visualize your science worth it? In this tutorial we will discuss the advantages and disadvantages of animations, and how someone without any artistic skills (like me) can produce effective ones for both outreach or as a teaching aid.

About the Speaker

Jacopo Bertolotti is currently an Associate Professor in Physics at the University of Exeter (UK). He received his degree and PhD in Physics from the University of Florence (IT). Before taking this position in 2013 he was a postdoctoral researcher at the University of Twente (NL) and the Institut Langevin (FR).
His main research interests are light scattering, imaging in disordered media, and optical computing. In 2015 he was awarded the "Philip Leverhulme Prize" by the Leverhulme foundation, and in 2016 was awarded the Moseley Medal by the Institute of Physics, both for his contributions to Optics.