1. Faculty of Science, UASLP, San Luis Potosí, Mexico
2. Department of Physics, IICO, UASLP, San Luis Potosí, Mexico
3. Faculty of Engineering, UASLP, San Luis Potosí, Mexico
4. Graduate Studies and Research Division, Tecnológico Nacional de México Campus Hermosillo, Hermosillo, Sonora, Mexico
5. Electronics Department, Research Centre for Applied Science and Engineering, UDG, Guadalajara, Mexico
6. Department of Physics, Universidad del Atlantico, Barranquilla, Colombia