From 9^th September to 10^th October, I had the great opportunity to spend 4 weeks at the Bremen Institute for Applied Beam Technology (BIAS), University of Bremen, under the supervision of Dr. Claas Falldorf. During my research stay, I worked on my PhD project focused on the quantitative interferometric characterization of intraocular (IOLs) and cosmetic contact lenses.

My main goal was to apply and learn advanced interferometric methods such as computational shear interferometry (CoSI) and adaptive wavefront sensing for precise evaluation of lens quality and safety. Throughout my stay, I was able to take part in practical experiments, data processing, and discussions about computational phase analysis. The work environment at BIAS was highly supportive, and I was inspired by the expertise and enthusiasm of the research team.

This experience not only deepened my understanding of optical interferometry but also strengthened my confidence as a young researcher. I am deeply and sincerely grateful to MAPEX, Dr. Falldorf, Dr. Mostafa Agour and the entire BIAS team for their generous guidance, scientific support, and warm hospitality throughout my stay in Bremen. I also greatly appreciate the financial support provided by the MAPEX Center for Materials and Processes, which made it possible to achieve results that would not have been attainable elsewhere, meet wonderful people, and enjoy a memorable scientific exchange. I sincerely hope that this inspiring experience will lead to ongoing collaboration between our groups.