Since 2006 we study the quantum properties of novel micro- and nano-structured electronic devices and their interaction with classical and quantum electromagnetic fields in a new and modern lab at ETH Zurich. The focus of our research is positioned at the intersections of mesoscopic condensed matter physics, atomic physics, quantum optics and quantum information science, where physical systems with intriguing properties and exciting applications can be realized. In particular, we study the fundamental physics of matter light interaction in the context of cavity quantum electrodynamics (QED). We also explore hybrid quantum systems in which we control and detect the quantum properties of semiconductor quantum dots and Rydberg atoms using solid state Cavity QED techniques. We are also interested in realizing applications of quantum electronic circuits as sensitive, possibly quantum limited, nano-electronic measurement devices and detectors.