Arik Rafiquddin Ahmed, a student of applied physics and electronics program in the Mathematics and Natural Sciences Department presented his thesis work on May 31, 2017. The thesis work was supervised by Mr. Avijit Das from the Department of Electrical and Electronic Engineering, BRAC University. The Examination Committee was chaired by Professor A. A. Z. Ahmad. Professor A F M Yusuf Haider, Professor Toffazol Hossain and Dr. Firoze H. Haque were also present in the Viva-Board as members of the Examination Committee. The research work carried by Arik Rafiquddin Ahmed was appreciated by the Examination Committee.