Dr. Ali Khumaeni is currently working as Lecturer of Laser Spectroscopy, Department of Physics, Diponegoro University, Indonesia. He has completed his PhD in Physics of Laser Spectroscopy, Graduate School of Nuclear Power and Energy Safety Engineering, University of Fukui, Japan and Post Doctoral Fellow in Laser induced Plasma Spectroscopy from Japan Atomic Energy Agency, Japan. Dr. Ali received honors includes Young Scientist Award, 4th International Conference on Laser Probing, Nagoya, Japan, Second Place Poster Award, 6th International Conference on Laser-Induced Breakdown Spectroscopy, TN, U.S.A, Student Travel Award, and Pacifichem 2015 Early Career Chemist Award. Previously he was appointed as Teaching Assistant at Diponegoro University, Indonesia, and Non-profit Organization Fukui Science and Education, Japan, Research Assistant, and Teaching Assistant University of Fukui, Japan. He is professional member of Laser-induced breakdown spectroscopy (LIBS) society in Japan, Optical Society, and The Atomic Energy Society of Japan. He is also serving as reviewer for journals such as Optics Letters, Applied Optics, Applied Physics A, Asian Journal of Applied Science, and Asian Journal of Physics. He has published 20 research articles in journals as well as 39 articles in conferences contributed as author/co-author. His main area of research interest focuses on optics, laser and optoelectronics, atomic spectroscopy, laser-induced breakdown spectroscopy, plasma diagnostics, plasma dynamics, plasma imaging, laser spectroscopy, laser-induced fluorescence, laser ablation, plasma material interaction, time resolved spectroscopy.