Research Studentships for Doctoral students - (BL184/2022-IST-ID)

Applications are open for 1 Research Studentship, within the framework of CeFEMA, Centro de Física e Engenharia de Materiais Avançados, projecto FCT UIDB/04540/2020, financed by national funds through FCT/MCTES (PIDDAC

Workplan: The optical properties of metals textured with nano and femtosecond lasers have been extensively studied by measures of reflectivity, ellipsometry and polarimetry. Nanostructures have been found to change the polarization of light identically to quarter- or half-wave plates, depending on the material. The presence of nanostructures also changes the color of the samples due to chemical and topographical effects, allowing the creation of white or golden silver, for example. This project aims to relate optical properties such as specular and diffuse reflectivity, ellipsometry measurements, spectral distribution of reflected light, etc. previously performed on samples of austenitic stainless steel, a commercial silver-copper alloy, high-purity silver and high-purity platinum, either in the polished state or after controlled treatments with a femtosecond laser conducted in order to generate LIPSS – Laser-induced periodic surface structures with the surface topography generated by the laser treatment, in order to understand the mechanisms of creation of this structural color. The results of the analyzes carried out will be compared with the results of the modeling carried out with the help of the COMSOL software. Modeling these structures using ellipsometry data will clarify the role of different effects at play in reflectivity measurements.

Duration: The research fellowship(s) will have the duration of 6 months. It’s expected to begin on the 1st of November 2022 and may be eventually renewed up to the duration of the project.

It is mandatory to formalize applications with the submission of the following documents: i) B1 Form – Fellowship application (https://ist-id.pt/concursos/bolsas/ ); ii) Curriculum Vitae; iii) academic degree certificate; iv) proof of enrollment at an academic degree course (Doctoral programme) v) motivation letter;

Applications must be submitted to the email: [email protected]