Tino Hofmann received the best poster award at the ICSE 4 for his presentation of the "Optical-Hall Effect". His poster summarized his recent developments of the optical-Hall effect. Applications range from 3D electron gases in multilayer semiconductor systems to the observation of the optical Quantum Hall effect in highly oriented pyrolytic graphite at low temperatures. In essence, the optical Hall effect addresses the optical birefringence in the THz and infrared spectroscopic domains and is caused by the interaction of the electromagnetic radiation with bound and unbound electrical charge carriers subjected to an external magnetic. The generalized ellipsometry technique is the backbone of the Optical Hall effect, and was invented and developed at UNL.