Seminar Announcement: Lora Ramunno

Data pubblicazione: 4-ago-2019 8.41.36

Announcement

Friday, 2 August 2019, 15:00

Sala Grande Palazzina B via alla Cascata 56/C

"Modeling complex nanophotonics systems : from large scale simulations to machine learning"

Lora Ramunno

Department of Physics,

University of Ottawa,

Ottawa, ON K1N 6N5,

Canada

Abstract

Numerical modelling provides an important tool for understanding light matter interaction in complex nanoscale systems. Simulations bring insight to experimental results by allowing one tease out the most relevant underlying phenomena in very complex scenarios. In this talk, I will focus on one example, relating to the creation of beautiful colors and artwork on metal surfaces via a laser writing process that creates very complex and random nanostructured surfaces. Our computations were able to identify that plasmonic effects were key to colour creation, and allowed us to detangle what features on the complex surface were respon sible for the generation of particular colours . Furthermore, using the experimental and simulation data generated from this work, we use machine learning to predict new colours, though an iterative inverse design algorithm that we developed.