Event· Chemnitz
Goldhahn, Ralf
I don't have enough context to identify a specific event here — "Goldhahn, Ralf" appears to be a person's name (Ralf Goldhahn is a German theoretical physicist known for research in semiconductor optics and quantum dot physics), rather than an event. Could you clarify what event or context you're referring to, such as an award, conference talk, or news item involving him?