Sujaul Chowdhury

The work was done by Md Mahmud Hasan as an M.S. thesis in 2012 in Department of Physics, Shahjalal University of Science and Technology http://www.sust.edu, Sylhet 3114, Bangladesh, under supervision of Dr. Sujaul Chowdhury schowdhuryphy@yahoo.com, a faculty of the Department. Dr Chowdhury has a glorious record of academic, scientific, teaching and research achievements; details in http://schowdhury-phy.weebly.com/.