S. Selvakumari - Bharathidasan University
C. Venkataraju - PG and Research Department of Physics, Thiru.Vi.Ka Govt Arts College, Thiruvarur, 610 003, Tamilnadu, India
S. Muthu - Department of Physics, Arignar Anna Govt.Arts College, Cheyyar, 604 407, Tamilnadu, India
Ahmad Irfan
D. Shanthi - Vel Tech Rangarajan Dr. Sagunthala R&D Institute of Science and Technology