University of California, Los Angeles

Professor, Chongqing University, China

University of Surrey

Department of Physics, Institute of Science Banaras Hindu University, Varanasi

Professor, Department of Chemistry, Bangladesh University of Engineering and Technology.

Associate Professor & Head, Indian Institute of Information Technology, Allahabad

Associate Professor, Department of Physics, Amity Institute of Applied Sciences, Amity …

Professor of Physics, Universidad de Ibagué