Jan Gieseler¹, Philipp Oleynik¹, Heli Hietala², Rami O Vainio¹, Hannu-Pekka Hedman³, Juhani Peltonen¹, Arttu Punkkinen¹, Risto Punkkinen³, Tero Säntti³, Edward Hæggström⁴, Jaan Praks⁵, Petri Niemelä⁵, Bagus Riwanto⁵, Nemanja Jovanovic⁵ and M. Rizwan Mughal⁵, (1)University of Turku, Department of Physics and Astronomy, Turku, Finland, (2)Imperial College London, London, United Kingdom, (3)University of Turku, Department of Future Technologies, Turku, Finland, (4)University of Helsinki, Department of Physics, Helsinki, Finland, (5)Aalto University, School of Electrical Engineering, Espoo, Finland