With degenerate atomic Bose and Fermi gases made of Rubidium and Lithium we follow three lines of research.1. In optical cavities atoms and light can be coupled with long coherence times. Fundamental collective phenomena such as Superradiance, collective atomic recoil lasing, and dissipative self organisation can be studied in detail with thermal clouds and with Bose-Einstein condensates. 2. Degenerate mixtures of fermionic Lithium and bosonic Rubidium are interesting for many reasons. At the moment, we investigate Bragg spectroscopy with fermionic Lithium including Ramsey and spin echo schemes. With the help of recently observed Rb-Li-Feshbach resonances it might be possible to look at the formation of dipolar quantum gases with Bragg spectroscopy.3. Condensates near surfaces are interesting for the development of "atom chips". We have constructed a chip based matter wave spectrometer and an on chip atom detector with better than 50% detection efficiency.