Two of our PhD students, Aarya and Lakshya, attended the annual doctoral seminar organised by Leibniz-IPHT, at the castle of Dornburg, between 18th and 21st of march. At the seminar, they presented their PhD projects to other doctoral students and project leaders from IPHT and IChF, Warsaw, exchanging research ideas and experiences during their doctorate. The seminar also facilitates the exchange of information about related topics, such as online trainings, courses, mental health support etc. available in Jena to all national and international students.