1. Federal University of Rio de Janeiro,Photonics and Instrumentation Laboratory (LIF), Nanotechnology Engineering Program,Rio de Janeiro,Brazil
2. International Iberian Nanotechnology Laboratory (INL),Braga,Portugal
3. Federal University of Rio de Janeiro,Photonics and Instrumentation Laboratory (LIF), Electrical Engineering Program,Rio de Janeiro,Brazil
4. Public University of Navarre, Pamplona,Electrical, Electronic and Communications Engineering Department,Pamplona,Spain