1. Collaborative Innovation Center for Green Intelligent Laser Manufacturing Technology and Equipment of Shandong Province, Qingdao University of Technology, Qingdao, Shandong Province, China
2. Department of Physics, Leibniz Institute of Surface Engineering(IOM), Leipzig, Germany
3. Center for Optical Research and Education (CORE), Utsunomiya University, Utsunomiya, Japan
4. Photonics Research Centre, University of Malaya, Kuala Lumpur, Malaysia