Zhenxi Zhang, PhD, is a Professor at the School of Life Science and Technology of Xi'an Jiaotong University, China. His research focus is on biomedical photonics imaging and spectral analysis techniques.Shudong Jiang, PhD, is a Professor at the Thayer School of Engineering of Dartmouth College, USA. Her research focus is on optical spectroscopy and imaging systems for biomedical applications.Buhong Li, PhD, is a Professor of Biomedical Photonics at the School of Science of Hainan University, China. His research is focused on optical technologies and instrumentation for monitoring photodynamic therapy dosimetry.