To further improve the scientific collaboration inside the CRC 1242, the integrated research training group organizes lab tours for PhD students from PhD students. This allows theorists to get a better understanding for the experimental conditions and possibilities. On the other hand, other experimentalists get some detailed insights into other labs' workflows and exchange their expertise.

The second occasion of this exchange format was hosted by the group of Prof. Axel Lorke (TP A01 and TP Ö). The PhD students visited the group's optics labs, that are specialized in low temperature optical spectroscopy. In the 0D lab, self-assembled semiconductor quantum dots are investigated using resonance fluorescence. These emit single photons in the near infrared optical spectrum and are promising building blocks for the quantum information technology. Two cryostats (a closed cycle and a helium bath cryostat) are available in the laboratory for this purpose. In the 2D lab, pure and stacked two dimensional materials (monolayers of transition metal dichalcogenide, hexagonal boron nitride, etc.) are investigated using micro-photoluminescence as well as Raman-spectroscopy.