We are very pleased to invite you to this year's VCSEL Day, which will take place in Łódź on 19 September 2025. As always, we hope it will be an opportunity to present the latest findings, exchange ideas and experiences.

This year we are planning a one-day meeting to be held at the Institute of Physics at the Lodz University of Technology.

Additionally, we would like to let you know that the NUSOD conference will also be held in Łódź from 14 to 19 September. So those of you who are interested in numerical computing can combine participation in these two conferences.