Dr. Ju H. Choi heads the Optical Lens Materials Research Center in Korea Photonics Technology Institute as a chief researcher. He obtained his doctor’s degree and worked as a postdoctoral researcher at the Materials Science of Engineering, University of California Irvine, USA, between 2004~2010, and worked for University of California Los Angeles as a member of the research staff between 2010-2011. He joined the Korea Photonics Technology Institute in 2012. His current research interests include optical glass materials (Chalcogenide glass materials, TeO2-based glass materials), single crystal materials (LiTaO3, CaF2), functional glass materials (laser sealing glass, rare earth doped laser glass), and optical coating (anti reflection coating, band pass filters, diamond-like coatings, etc).