Introduction to Brillouin Scattering

• Grant number: 24/08131-1
• Support Opportunities: Scholarships in Brazil - Scientific Initiation
• Start date: June 01, 2024
• End date: April 30, 2025
• Field of knowledge: Physical Sciences and Mathematics - Physics - Condensed Matter Physics
• Principal Investigator: Gustavo Silva Wiederhecker
• Grantee: André Mesquita Segati
• 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

Abstract

The goal of this project is to introduce the student to the theoretical and experimentall aspects Brillouin scattering in waveguides and its usage as a temperature and strain sensor. The student will interact with senior graduate students also investigating Brillouin scattering in nanophotonics waveguides.1. Study the fundamentals of the Brillouin scattering: elasto-optic effect and electrosctriction.2. Investigate experimental techniques to characterize Brillouin spectrum: optical and electrical (homodyne) methods3. Characterize Brillouin spectrum in optical fibers. Infer temperature and strain from Brillouin spectrum4. Understand and participate of the advanced Brillouin experiments in integrated optical waveguides along with senior students.