Hello, I have completed a Master program in China, during which, I joined in a project applying nano-particles in optical device. The project motivated me to study optical property of nano-particles, and I am looking for a Ph.D. position in Germany. The problem is: how do I get known with my potential research group since I have no way to visit there? Two thoughts came to my mind: A. Before entering Ph.D, I apply to an international Master program in Germany, such as MAOT. http://www.aot.uni-erlangen.de/maot/home.html During the Master, I may get known with the people and research their. But I have already got a Master’s in China. Will I be rejected for this? B. I apply to a so-called structural Ph.D. program directly, such as In that case, do I need to contact a professor before making an application? Are there any recommendation?