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Thursday, 27 June 2019

Focus on the interaction of light with complex dielectrics

A special session on disorder photonics, organized by Dr. Pedro David García Fernandez from the ICN2 and Dr. Jacopo Bertolotti from the University of Exeter (UK), was held at PIERS 2019 – Rome to discuss recent development of this multi-application research field.

From June 17 to 20, the 41st edition of the Photonics and Electromagnetics Research Symposium (PIERS) took place at the Faculty of Engineering of the University “La Sapienza” in Rome (Italy). A focus session on disordered photonics was organized by Dr. Pedro David García Fernandez of the ICN2 Phononic and Photonic Nanostructures group and Dr. Jacopo Bertolotti from the University of Exeter (UK).

The field of disordered photonics studies the interaction of light with materials with a complex or random structure and has grown immensely over the past decades. Because of their disordered structure, these materials strongly scatter light, scrambling their initial propagation direction. This is what happens with clouds, milk, white paint or biological tissues. The need for imaging through complex media such as human tissues requires understanding and engineering the interaction of light with these systems which, in addition, provides tools for improving the efficiency of energy harvesting and for the analysis of other complex media.

The topics covered in the session ranged from imaging, focusing and computing with light in complex media, to random lasing and light-matter interaction in non-periodic dielectric nanostructures. Among the renown international invited speakers were Prof. Hui Cao (Yale University), Prof. Sylvain Gigan (École Normale Supérieure, Paris), Dr. Riccardo Sapienza (Imperial College London), Prof. Massimo Gurioli (University of Florence) and Prof. Rafael Piestun (University of Boulder - Colorado).

The Photonics and Electromagnetics Research Symposium, also known as Progress in Electromagnetics Research Symposium, provides an international forum for reporting progress and recent advances in the modern development of electromagnetics, photonics and their applications. Topics include electromagnetic theory, photonics, plasmonics, metamaterials, antennas, microwave technologies, computational electromagnetics, scattering, remote sensing, radars, imaging, quantum electrodynamics and optics, electromagnetic compatibility, and many more developments in the field.


Photo credit: Jacopo Bertolotti.