1. Prof. C.N.R. Rao Centre for Advanced Materials, Tumkur University, Tumkur 572 103, India
2. Department of Physics, National Dong Hwa University, Hualien 97401, Taiwan
3. Department of Physics, National Tsing Hua University, Hsinchu 30013, Taiwan
4. Honorary Professor of Law and Forensic Materials, Jain University, Bangalore 562112, India
5. School of Biomedical Sciences, Sri Balaji Vidyapeeth (Deemed to Be University), Puducherry 607402, India