Prof. Ventsislav K. Valev,
Research Fellow of the Royal Society, OpticaF, Fellow of SPIE, FInstP, FRMS, Head of Department of Physics at University of Bath,
visiting Professor at SBAI Department,
will give a seminar in "Sala Lettura" RM009 on 13/07/2023 at 15:15.
Title: Recent advances in chiroptical harmonic scattering
Abstract: Chiroptical harmonic scattering (CHS) was predicted in 1979, but an experimental observation of this effect remained elusive for 40 years. A first form of CHS was reported in 2019; it was demonstrated that light scattered at the second-harmonic from Ag nanohelices dispersed in water could reveal the chirality of the nanohelices. Observations in other systems (metal and semiconductor) and at the third-harmonic quickly followed. Future directions of development include novel materials (e.g. Si and Au nanohelices), novel types of scattering (e.g. second harmonic Mie scattering and Raman scattering) and instrumental developments.