YongKeun (Paul) Park is the Ewon Assistant Professor in the Department of Physics, Korea Advanced Institute of Science and Technology (KAIST), Republic of Korea. Dr. Park received the B.S. in Mechanical Engineering from Seoul National University in 2004, M.S in Mechanical Engineering from MIT in 2007, and Ph.D. in Medical Physics and Medical Engineering from Harvard-MIT Health Science and Technology in 2010. He joined KAIST in 2010 summer. The goals of his research are to develop optical methods based on laser physics, holography, and light scattering, in order to understand the physics of diseases diagnose and treat the human diseases.