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Nanoantenna-enhanced difference-frequency generation in 2D transition metal dichalcogenides

Grant number: 23/17905-8
Support Opportunities:Scholarships abroad - Research
Effective date (Start): September 15, 2024
Effective date (End): December 14, 2024
Field of knowledge:Physical Sciences and Mathematics - Physics - Condensed Matter Physics
Principal Investigator:Christiano José Santiago de Matos
Grantee:Christiano José Santiago de Matos
Host Investigator: Leonardo de Souza Menezes
Host Institution: Escola de Engenharia (EE). Universidade Presbiteriana Mackenzie (UPM). Instituto Presbiteriano Mackenzie. São Paulo , SP, Brazil
Research place: Ludwig Maximilian University of Munich (LMU Munich), Germany  
Associated research grant:18/25339-4 - Integrated photonics devices, AP.TEM

Abstract

In this project, the visiting scholar and the academic host in Germany will work in synergy, together with their research groups, in order to design, fabricate and test nanostructures consisting of monolayer transition metal dichalcogenides (TMDs) and dielectric nanoantennas and/or metasurfaces for the observation of nonlinear frequency conversion via difference frequency generation. Resonancewith 2D excitons of the TMDs and with nanoantenna modes will provide a double resonance condition that enhances the frequency conversion. This nonlinear optical process, which has been scarcely studied in 2D materials, can allow for the generation of waves in various spectral ranges, including the mid infrared, that can be used for a number of applications, such bio- and chemical sensing. The visit is intended as a first step towards a longer-term collaboration that combines expertise from both sides, and for which further funding will be sought, not only in Brazil, but also in Germany.

News published in Agência FAPESP Newsletter about the scholarship:
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