Scholarship 23/08401-6 - Guias de onda, Interação luz-matéria - BV FAPESP
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Plasmonic waveguides based on Er3+ doped nanoglasses for quantum telecommunications applications

Grant number: 23/08401-6
Support Opportunities:Scholarships in Brazil - Doctorate
Start date until: September 01, 2024
End date until: August 31, 2027
Field of knowledge:Physical Sciences and Mathematics - Physics - Condensed Matter Physics
Principal Investigator:Euclydes Marega Junior
Grantee:José Yitzhak Aarón Chacaliaza Ricaldi
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 study of the interaction between rare earth ions in glasses and thin films with surface plasmon polaritons in a strong coupling regime has extensive applications in telecommunications. This can be enabled through ordered arrays of plasmonic nanostructures on gold surfaces. These structures not only amplify the local electric field at the metal/substrate interface but also refine specific modes and induce extraordinary optical transmission. Furthermore, with the expansion of telecommunications, there's a growing demand for increased speed and security in data transmission. Optical networks are advancing, incorporating reconfigurable circuits to adapt to network conditions. Quantum internet offers the capability to transmit data using protocols based on quantum mechanics, propelled by quantum repeaters still under development through different approaches. Our proposal involves developing quantum repeaters on plasmonic nanostructures using active optical materials. This project will be grounded in three main pillars: 1. Development of new active hybrid photonic materials: creating and manufacturing hybrid thin films from tellurite-oxide nanoglasses doped with Er3+ ions immersed in PMMA, with optical gain properties, to be deposited onto plasmonic nanostructures. 2. Advancing techniques for manufacturing hybrid waveguides based on PMMA through optical lithography, aiming to maximize this process via the interaction of surface plasmon polaritons - Er3+, and achieving quantum repeaters. 3. Experimental characterizations: Assessing the performance of the produced materials and the quantum repeater, focusing on spontaneous and stimulated emission, optical gain and amplification, as well as evaluating the proposed quantum information protocols in the project.

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