One-dimensional localization of light beyond the linear regime

• Grant number: 25/11476-3
• Support Opportunities: Regular Research Grants
• Start date: October 01, 2025
• End date: September 30, 2026
• Field of knowledge: Physical Sciences and Mathematics - Physics - Atomic and Molecular Physics
• Principal Investigator: Romain Pierre Marcel Bachelard
• Grantee: Romain Pierre Marcel Bachelard
• Host Institution: Centro de Ciências Exatas e de Tecnologia (CCET). Universidade Federal de São Carlos (UFSCAR). São Carlos , SP, Brazil
• City of the host institution: São Carlos
• Associated research grant: 23/03300-7 - Localization of Light: Anderson and beyond, AP.R
• Associated scholarship(s): 25/23698-0 - One-dimensional localization of light beyond the linear regime, BP.IC

Abstract

This project will investigate light localization in one-dimensional disordered systems in the presence of nonlinear effects. Such effects arise due to the finite number of excitations in the system, i.e., the interactions between photons through scatterers. Using a mean-field approach, the student will investigate how such nonlinear effects affect the transmission and localization length, and how they couple the modes. The goal is to identify the effects that will arise due to the finite pumping intensity in a potential experiment, first using the simplest platform of one-dimensional systems. (AU)