Xavier Intes received a Ph.D. degree in physics from the University of Bretagne Occidentale (France) for his contributions in characterization of propagation of optical scalar waves in highly diffuse medium. He then joined Prof Britton Chance laboratory as a postdoctoral fellow at the University of Pennsylvania. He held simultaneously postdoctoral appointments in the departments of Biochemistry and Biophysics, of Radiology under the mentorship of Prof Britton Chance and the department of Astronomy and Physics under the mentorship of Prof Arjun Yodh. He acted as the Director of Research of the Medical Diagnostic Research Foundation, Philadelphia, USA, and the Director of Research of Optical Devices Inc., Philadelphia, USA. He joined Advanced Research Technologies Inc as ART's Chief Scientist. He has been awarded a NSF Career award and being inducted as fellow of AIMBE, OSA and SPIE. He is currently a NIH chartered member for the IGIS study section.