Salwa Abe- El- Messieh 2, 3, Doris Ramzy 1, 3, Nabih Tawfik 1, 3, Amira Nassar 1, 3, Azza Ward 2, 3, Yehia Badr 3, 3, Mohammed Hafez 3, 3
1 National Research Center,solid state Department Dokki Cairo Egypt, Cairo, Egypt, 2 National Research Center,Microwave and dielectrics Department Dokki Cairo Egypt, Cairo, Egypt, 3 National Institute of Laser Enhancement Sciences (NILES), Cairo University, Cairo, Egypt;, Cairo, Egypt