1. Department of Functional Nanomaterials, Institute of Physics, Savanorių 231, LT-02300 Vilnius, Lithuania, Institute of Biochemistry and Cluster of Excellence Macromolecular Complexes (CEF), Johann Wolfgang Goethe-University, Max-von-Laue-Strasse 9, 60438 Frankfurt, Germany, and Division of Molecular Physics, Department of Physics, Chemistry, and Biology, Linköping University, 58183 Linköping, Sweden