Focused Sessions

For the second time, EOSAM includes Focused Sessions, on selected hot topics deemed to be of special interest to conference attendees. Every year, the conference will provide the timely platform to highlight several specific areas that reflect the emerging trends in optics and photonics.


Session 1: Holography and Structured light


Ignacio Moreno Ignacio Moreno
Miguel Hernández (ES)
Lorenzo marrucci

Lorenzo Marrucci
University of Naples
Federico II (IT)




Modern holographic techniques employ diffractive elements created on metasurfaces, liquid-crystal elements or spatial light modulator devices. They have boosted the research on fundamentals and applications of custom structured light fields. Initially referring to the traditional manipulation of amplitude, phase or polarization state of transverse light fields, light structuring has evolved towards 3D and temporal shaping of light beams. The goal of this session is to review the continuous development of holographic techniques and their application in the field of structured light, its interaction with matter, and their multiple applications in both classical and quantum optics.


• Materials and devices for holography, including optical metasurfaces, geometric-phase elements, and spatial light modulators
• Mathematical & computational techniques for optimized design of computer generated holograms
• Generation, control and detection of structured light beams
• Vortex and vector beams, orbital angular momentum, space-time wave packets
• Applications in material processing, high-power beam shaping, microscopy, optical tweezing and trapping, optical communications, etc
• Interactions of structured light with matter

Invited Speaker

Robert Fickler

Tampere University (FI)

Title: Generalized angle-orbital-angular-momentum Talbot effect


Enrique J Galvez

Colgate University (US)

Title: Investigating gravitational lensing diffraction in the laboratory with structured light


Jörg Bernhard Götte

University of Glasgow (UK)

Title: Paraxial and non-paraxial optical skyrmions


Dmitry Pushin

University of Waterloo (CA)

Title: Structured neutron waves and neutron holography


Carlos Hernández-García

Universidad de Salamanca (ES)

Title: Structured light in attoscience



Session 2: Optical Fibers Technology


Sylvie lebrun

Sylvie Lebrun
Université Paris-Saclay (FR)

Andrea cusano Andrea Cusano
University of Sannio (IT)


"Optical fiber technology has achieved major advances in the last few decades, and has revolutionized key application fields, including those of communications, sensing, and lighting.

The aim of this Special Issue is to feature recent advances and new trends in the field of novel optical fibers, their devices and applications with a special focus on fiber material and properties, design and fabrication, light localization structures, fiber surface functionalization through sensitive materials and transducing techniques, and components and sensing systems. New developments on optical fibers from fundamental physics to application devices will be welcome. Both theoretical and experimental studies are eligible. "


• Design, simulation, modeling and post processing of optical fiber
• Optical and physical characterizations of optical fibers
• New fibers and materials (including photonic crystal fiber, chalcogenide, tellurite, tapered optical fibers...)
• Optomechanical and light / sound interactions
• Fiber lasers and light emitting fibers
• Integrated photonics
(including light coupling, environment and industrial applications).

• New optical fiber sensors
• Optical fiber components (filters, metalenses, polarizers, modulators, etc.)
• Fiber amplifiers
• Fiber switching, memory, and signal processing
• Fiber nonlinearities
• Long-haul transmission systems
• Fiber local area networks
• Fiber sensors and instrumentation
• Nanotechnology on fiber
• Fiber optic Optrodes
• Optical fiber functionalizing processes
• Optical fiber fabrication technologies
• Microstructured and photonic-crystal fibers
• Micro and nano-fibers
• New Applications 

Invited Speakers

Jean-Charles Beugnot

FEMTO-ST, Université de Franche-Comté (FR)

Title: Nanofiber platform to manipulate photons and phonons 


Andrea Fiore

Eindhoven University of Technology (NL)

Title: Fiber-tip nanophotonics for optical sensing


Sile Nic Chormaic

OIST Graduate University (JP)

Title: Integrating optical nanofibres with cold rubidium ground-state and Rydberg atoms

Session 3: Passive Radiative Cooling


Anna castaldo

Anna Castaldo

Lorenzo pattelli

Lorenzo Pattelli
National Metrology Institute of Italy (IT)



Passive radiative cooling (PRC) materials provide a renewable and electricity-free method to cool down an object by radiating its thermal energy to space through the infrared atmospheric window (8–13 μm). Relevant application examples of PRC materials have been proposed in the building sector, for the cooling of vehicles and electronics, photovoltaic or thermoelectric generation, water harvesting or desalination, depending on their tailored spectral response across the solar and thermal infrared spectrum. In the 50th anniversary of a pioneering study on daytime radiative cooling published by the Università di Napoli, this session will review recent advances in the design, fabrication and experimental characterization of advanced radiative cooling materials.



• Passive radiative cooling

• Solar reflectors

• Thermal emissivity

• Selective emitters

• Sustainable photonic materials

• Optical materials
for thermal regulation

• Inverse design of photonic structures

Invited Speaker

Aaswath P. Raman, 
University of California, Los Angeles (US)

Radiative Cooling: Ten Years of Progress in Daytime Radiative Cooling and New Frontiers

On the tenth anniversary of the first demonstration of daytime radiative cooling, we will both provide an introduction to, and survey, the state of the field, highlighting the role of advanced in optical and nanoscale materials in enabling recent progress. We will also look ahead to new frontiers and challenges in radiative cooling materials and technological applications enabled by radiative cooling.

Session 4: Photonics for cultural heritage


Daniela comelli

Daniela Comelli
Politecnico di Milano

Marcello picollo

Marcello Picollo
Fiorentino (IT)



The session will focus on the role of Photonics techniques in the Heritage Science field.
Photonics provides a wealth of non-invasive, non-contact and often portable devices for the study of artworks, archaeological findings, architectural buildings, and art materials.
In this framework, the session aims to demonstrate and discuss how Photonics, Optics, Spectroscopy, and 2D and 3D Imaging techniques can enhance our understanding of artworks. It will showcase the most recent discoveries on cutting-edge photonic technologies applied to cultural heritage studies and delve into compelling case studies where Photonics technologies played a pivotal role.


• Novel implementation of Hyperspectral Imaging and Multimodal Imaging to the Heritage Science field, including instruments working in extended spectral ranges, at variable spatial scales or at large stand-off distances.
• Introduction of new portable instruments designed for both laboratory and in-situ studies.
• Exploration of depth-resolved methods, including diffuse Raman spectroscopy, optical coherence tomography, non-linear microscopy and terahertz imaging.
• Application of interferometric and holographic techniques for internal structural analysis.
• Design of advanced techniques for 3D topographic scanning and surface examination.
• Multimodal imaging and multi-technique spectroscopy analysis applied to specific case study

Invited Speakers

Alessandra Botteon

CNR-ISPC, Milano (IT)

Title: Raman spectroscopy advancements in heritage science  


Bendetto Ardini

Politecnico di Milano, Physics Department (IT)

Title: Multi-scalar and multi-modal wide-field imaging of artworks with a novel hyperspectral system

Session 5: Machine-​​​​​​​Learning for Optics and Photonic Computing for AI


Birgit stiller

Birgit Stiller
MPI for the
Science of Light (DE)

Goery genty

Goery Genty
Tampere University (FI)


In the past few years, artificial intelligence (AI) techniques have opened up new horizons for research into photonics. AI techniques are particularly powerful to design photonics structures and devices for specific tasks, often resulting in higher efficiency and generally improved performance. Photonics components and systems are also exceedingly considered to replace conventional electronic implementations of AI computation. This special session aims cover the most recent findings and scientific insight in advanced techniques and applications of this merger between Photonics and AI.


• Technical machine-learning

• All-Optical Neural Networks

AI-related techniques for optical computing. imaging, sensing, and nonlinear optics

• Photonic AI systems and chips

• Inverse design of photonics
structures and components


Invited Speakers

Benjamin Wetzel

CNRS - XLIM Research Institute (FR)

Title: Characterization and machine-learning optimization of modulation instability processes in nonlinear fiber optics


Darko Zibar

Technical University of Denmark (DK)

Title: Machine learning techniques for noise characterization of optical frequency combs