Valery V. Tuchin is a professor and chairman of Optics and Biophotonics at Saratov National Research State University. He is also the head of laboratory, Institute of Precision Mechanics and Control, Russian Academy of Sciences, and the supervisor of Interdisciplinary laboratory of Biophotonics at National Research Tomsk State University. Dr. Tuchin is the editor of the Handbook of Coherent-Domain Optical Methods: Biomedical Diagnostics, Environmental Monitoring, and Materials Science (Springer). His research interests include biophotonics, tissue optics, laser medicine, tissue optical clearing, and nanobiophotonics. He is a guest professor of Huazhong University of Science and Technology (HUST) and Tianjin Universities of China, and adjunct professor at University of Limerick and National University of Ireland, Galway. He is member and fellow of SPIE and OSA, and a member of the IEEE. Jürgen Popp studied chemistry at the Universitiesof Erlangen and Wuerzburg. After his PhD in Chemistry, he joined Yale University for postdoctoral work. Since 2002 he has held the chair for Physical Chemistry at the Friedrich-Schiller University, Jena. Furthermore, since 2006, he is the Scientific Director of the Leibniz Institute of Photonic Technology, Jena. His research interests are mainly concerned with biophotonics according to the needs of pathology, oncology, and infection/sepsis. He is a member and fellow of SAS and SPIE. Valery P. Zakharov is a Professor and Chair of the Laser and Biotechnical Systems Department, and Head of the Photonics Laboratory, at Samara National Research University. His research interests include: laser medicine, biophotonics, multimodal biomedical imaging, and application of fluorescence and Raman-techniques for biomedical diagnostics. He has been awarded Honored Science Worker of Russia and the Samara Award for Biophotonics innovations. He has published more than 350 publications in peer refereed journals.