Nonlinear Dynamics in Photonic Molecules: Theory, Design and Characterization

• Grant number: 25/14437-9
• Support Opportunities: Scholarships in Brazil - Scientific Initiation
• Start date: August 01, 2025
• End date: July 31, 2026
• Field of knowledge: Physical Sciences and Mathematics - Physics - Condensed Matter Physics
• Principal Investigator: Gustavo Silva Wiederhecker
• Grantee: Miguel Andres Silva Nienstedt
• Host Institution: Instituto de Física Gleb Wataghin (IFGW). Universidade Estadual de Campinas (UNICAMP). Campinas , SP, Brazil
• Associated research grant: 18/15577-5 - Nonlinear nanophotonics circuits: building blocks for optical frequency synthesis, filtering and signal processing, AP.JP2
• Associated scholarship(s): 25/20846-9 - Characterization of Nonlinear Dynamics in Photonic Molecules, BE.EP.IC

Abstract

This project aims to deepen the theoretical and experimental understanding of nonlinear photonic systems based on integrated microresonators, focusing on spontaneous symmetry breaking (SSB), soliton states and squeezed light generation through four-wave mixing (FWM). Building on the candidate's previous work with coupled-mode models and the Lugiato-Lefever equation (LLE), the project will extend these tools to incorporate parasitic resonant modes and photonic molecule geometries, enabling more accurate simulations of complex cavity dynamics aligned with ongoing experimental results.The project will also involve designing and characterizing photonic molecules optimized for SSB and squeezing, bridging theoretical insight with fabrication constraints at the Max Planck Institute for the Science of Light (MPL). A planned BEPE internship will support experimental validation of simulation results and inform future device design.Ultimately, this research will contribute to the development of robust, quantum-compatible photonic platforms. It will provide the candidate with advanced training in nonlinear optics and integrated photonics while supporting the broader goals of our group in quantum information and low-noise metrology.