Housni Al-Wahsh is Professor of Theoretical Physics and Head of the Engineering, Mathematics, and Physics Department, Faculty of Engineering, Benha University, Cairo, Egypt. He is ...view moreHousni Al-Wahsh is Professor of Theoretical Physics and Head of the Engineering, Mathematics, and Physics Department, Faculty of Engineering, Benha University, Cairo, Egypt. He is primarily interested in the physical properties of electronic, plasmonic and magnonic crystals.view less