The work on symmetric rectangular double barrier was done by Md. Abdus Samad and the work on symmetric double barrier of general shape was done by Dipak Dash as two separate M.S. theses in 2011 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/.

Master's Thesis from the year 2011 in the subject Physics - Other, Shahjalal University of Science and Technology (Department of Physics), course: Nanostructure Physics, language: English, abstract: The book deals with pure Nanostructure Physics; it contains thorough and complete analytical calculations leading to equation(s) obeyed by quasi-bound energy levels of non-isolated Quantum Well of symmetric rectangular double barrier as well as of symmetric double barrier of general shape. Methodology and Physics involved with the calculations is also clearly described. WKB method has been used in the case of symmetric double barrier of general shape. The book also contains necessary background on Quantum Mechanics, Microelectronics, Nanostructure Physics and WKB method to enable readers assimilate the book completely. The book explores and makes well documented, with thorough and complete calculation and discussion, pure Physics of semiconductor nanostructures.