1. Universidade Federal da Integração Latino-Americana, UNILA, 85867-970, Foz do Iguaçu, Brazil
2. School of Engineering, Mackenzie Presbyterian University, São Paulo 01302-907, Brazil
3. School of Physics and Astronomy, University of Manchester, Manchester M13 9PL, UK
4. Department of Physics, Pontifícia Universidade Católica do Rio de Janeiro, 22451-900, Rio de Janeiro, Brazil