1. LTSE, Faculty of Physics, University of Science and Technology Houari Boumediene (USTHB), BP 32 El-Alia, Algiers 16111, Algeria e-mail:
2. LMFL, Arts et Métiers ParisTech, 8 Boulevard Louis XIV, Lille 59046, France
3. LTSE, Faculty of Physics, University of Science and Technology Houari Boumediene (USTHB), BP 32 El-Alia, Algiers 16111, Algeria
4. LMF, Ecole Militaire Polytechnique, BP 17 Bordj-el-Bahri, Algiers 16046, Algeria
5. Centre de Développement des EnergiesRenouvelables, CDER, BP 62, Route de l'Observatoire, Bouzareah, Algiers 16340, Algeria
6. Virginia Tech, Kevin T. Crofton Department of Aerospace and Ocean Engineering, Blacksburg, VA 24061