Projects and Principal Investigators Project Area A: Fundamentals Project Title Principal investigator(s) A02 Four-wave-mixing spectroscopy and optical pulse propagation inwide gap semiconductors Dr. Ilya Akimov, Faculty of Physics, TU DO Prof. Dr. Torsten Meier, Dept. of Physics, UPB A03 Cavity enhanced two-photon physics with semiconductor quantum dots Prof. Dr. Stefan Schumacher, Dept. of Physics, UPB Prof. Dr. Artur Zrenner, Dept. of Physics, UPB Prof. Dr. Dirk Reuter, Dept. of Physics, UPB A04 Nonlinear cavity polariton physics for functional photonic elements Jun.-Prof. Dr. Marc Assmann, Faculty of Physics, TU DO Prof. Dr. Stefan Schumacher, Dept. of Physics, UPB A06 Tailored ultrafast acoustics for light emission modulation Prof. Dr. Manfred Bayer, Faculty of Physics, TU DO Prof. Dr. Dirk Reuter, Dept. of Physics, UPB A07 Widely non-degenerate stimulated two-photon emission in semiconductors Dr. Claudia Ruppert, Faculty of Physics, TU DO Prof. Dr. Markus Betz, Faculty of Physics, TU DO Prof. Dr. Torsten Meier, Dept. of Physics, UPB A08 Coupling between plasmonic excitations and intersubband transitions in nonlinear metasurfaces Prof. Dr. Mirko Cinchetti, Faculty of Physics, TU DO Prof. Dr. Thomas Zentgraf, Dept. of Physics, UPB Project Area B: Materials Project Title Principal investigator(s) B01 Nonlinear multi-photon and harmonics generation spectroscopyon ZnO-based nanostructures Prof. Dr. Cedrik Meier, Dept. of Physics, UPB Prof. Dr. Dmitri Yakovlev, Faculty of Physics, TU DO B02 Nonlinear optics and coherent intersubband physics of cubicGaN/Al(Ga)N heterostructures Prof. Dr. Donat As, Dept. of Physics, UPB Prof. Dr. Markus Betz, Faculty of Physics, TU DO B04 Ab initio theory for photonic materials Prof. Dr. Arno Schindlmayr, Dept. of Physics, UPB Prof. Dr. Wolf Gero Schmidt, Dept. of Physics, UPB Dr. Uwe Gerstmann, Dept. of Physics, UPB B05 Tailored KTP and LiNbO3 waveguide structures for counter-propagating parametric downconversion processes Prof. Dr. Christine Silberhorn, Dept. of Physics, UPB Dr. Gerhard Berth, Dept. of Physics, UPB Project Area C: Functional Structures Project Title Principal investigator(s) C01 Engineered frequency conversion devices Prof. Dr. Christine Silberhorn, Dept. of Physics, UPB Prof. Dr. Manfred Bayer, Faculty of Physics, TU DO C02 Integrated SU(1,1) interferometers Prof. Dr. Christine Silberhorn, Dept. of Physics, UPB Jun.-Prof. Dr. Polina Sharapova, Dept. of Physics, UPB C04 Ultrafast electric control of optical polarizations and transitions Prof. Dr. Artur Zrenner, Dept. of Physics, UPB Prof. Dr.-Ing. Andreas Thiede, Dept. of Electrical Engineering, UPB Prof. Dr. Jens Förstner, Dept. of Electrical Engineering, UPB C05 Nonlinear optical surfaces based on ZnO-plasmonic hybrid-nanostructures Prof. Dr. Thomas Zentgraf, Dept. of Physics, UPB Prof. Dr. Jens Förstner, Dept. of Electrical Engineering, UPB Prof. Dr. Cedrik Meier, Dept. of Physics, UPB C06 Integrated measurement-induced nonlinearity with superconducting detectors Jun.-Prof. Dr. Tim Bartley, Dept. of Physics, UPB Prof. Dr. Torsten Meier, Dept. of Physics, UPB