Sujaul Chowdhury is a Professor in Department of Physics, Shahjalal University of Science and　Technology (SUST),　www.sust.edu, Bangladesh. He obtained a B.Sc. (Honours) in Physics in 1994 and M.Sc. in Physics in 1996 from SUST. He obtained a Ph.D. in Physics from The University of Glasgow, UK in 2001. He was a Humboldt Research Fellow for one year at The Max Planck Institute, Stuttgart, Germany.Syed Badiuzzaman Faruque is a Professor in Department of Physics, SUST. He is a researcher with interest in Quantum Theory, Gravitational Physics, Material Science etc. He has been teaching Physics at university level for about 27 years. He studied Physics in The University of Dhaka, Bangladesh and in The University of Massachusetts Dartmouth, U.S.A. and did PhD in SUST.Ponkog Kumar Das is an Assistant Professor in Department of Physics, SUST. He obtained a B.Sc. (Honours) and M.Sc. in Physics from SUST. He is a promising future intellectual.