1. Institute of Biology II, RWTH Aachen University, Worringerweg 3, 52074 Aachen, Germany
2. Institute of Biomedical Mechatronics, Johannes Kepler University, Altenberger Strasse 69, 4040 Linz, Austria
3. Research Center of Non Destructive Testing GmbH (RECENDT), Area of Optical Coherence Tomography, Altenberger Strasse 69, 4040 Linz, Austria
4. Institute of Experimental Physics, Department of Soft Matter Physics, Johannes Kepler University, Altenberger Strasse 69, 4040 Linz, Austria