Study of the Optical Properties of Plasmonic Structures Using Numerical Simulation

• Grant number: 23/05726-1
• Support Opportunities: Scholarships in Brazil - Scientific Initiation
• Start date: January 01, 2024
• End date: December 31, 2024
• Field of knowledge: Physical Sciences and Mathematics - Physics - Condensed Matter Physics
• Principal Investigator: Euclydes Marega Junior
• Grantee: Vinícius Bastos Marcos
• Host Institution: Instituto de Física de São Carlos (IFSC). Universidade de São Paulo (USP). São Carlos , SP, Brazil
• Associated research grant: 13/07276-1 - CEPOF - Optics and Photonic Research Center, AP.CEPID

Abstract

The project's main objective is to systematically study the optical properties of metallic nanostructures composed of a set of metallic slits whose lateral dimensions are smaller than the wavelength of the incident radiation. These nanostructures are manufactured in a metallic film deposited on a dielectric substrate. The study will be done through numerical simulations using the finite difference method in the time domain (FDTD). The study will determine properties such as i) extraordinary optical transmission spectrum, ii) reflectance spectrum and determination of resonances, iii) profiles of the evanescent field formed at the dielectric-metal interface. Such studies will be used to fabricate nanostructures to study the interaction of plasmon-polartions of surfaces with quantum emitters.