Isabel Streicher (Fraunhofer Institute for Applied Solid State Physics IAF / DE), Dr. Stefano Leone (Fraunhofer Institute for Applied Solid State Physics IAF / DE), Dr. Christian Manz (Fraunhofer Institute for Applied Solid State Physics IAF / DE), Dr. Lutz Kirste (Fraunhofer Institute for Applied Solid State Physics IAF / DE), Mario Prescher (Fraunhofer Institute for Applied Solid State Physics IAF / DE), Hanspeter Menner (Fraunhofer Institute for Applied Solid State Physics IAF / DE), Dr. Patrick Waltereit (Fraunhofer Institute for Applied Solid State Physics IAF / DE), Dr. Michael Mikulla (Fraunhofer Institute for Applied Solid State Physics IAF / DE), Prof. Dr. Ruediger Quay (Fraunhofer Institute for Applied Solid State Physics IAF / DE), Prof. Dr. Dr. Oliver Ambacher (Fraunhofer Institute for Applied Solid State Physics IAF / DE)