Light-matter interactions, the recent advances in fabrication techniques, and the trends to compactness makes photonics to work more and more on the nanoscale. This makes this a broad field where developments based on nanostructured dielectrics, semiconductors and metals leads to applications and devices in which electromagnetic field can be generated, manipulated and controlled in sub-wavelength structures.

The materials employed cover a wide range: organic, metallic, ceramic, magnetic, and dielectric. The clever choice or combination from such a wide variety of materials enables the development of novel applications with on-demand optical properties. Applications that will lead to technological advances span from information technologies to energy harvesting and biosensing.
The conference aim is to bring together top researchers and future leaders encouraging interactions between students, young speakers, and senior figures in the field. The topics will cover the experimental and theoretical aspects of light interaction with nanoscale objects and nanostructured materials, focusing on dielectric materials tailored on the nanoscale, metallic materials exploiting their capability to sustain plasmon excitations, and magneto-optical materials that, on one side, allow external modification of the optical properties, and, on the other, are non-reciprocal permitting to envisage structures that are immune to backscattering.
3PM event will also explore different cutting edge research topics where phonons play a central role such as quantum photonics, nanoscale thermal transport, topological phononics, nanophononics and optomechanics. The large variation in their frequency range and the even larger variation in their mean free path mediate the coupling of phonons with such a broad spectrum of physical phenomena. Indeed, phonon-induced decoherence of photons is an important challenge for, e.g, solid-state quantum photonics while heat is transported by phonons in nanoscale systems. Phonon engineering and photon-phonon coupling by using precisely fabricated nanometer-scale devices are also exciting research lines with the ultimate goal of controlling the overlap of light management with the mechanical vibrations of matter, thus providing an extra degree of freedom to the control of the light-matter interaction.