1. Departamento de Física, Universidade Estadual de Maringá, Maringá, PR 87020-900, Brazil
2. Departamento de Física, Universidade Tecnológica Federal do Paraná, Medianeira, PR 85884-000, Brazil
3. Department of Chemistry and Biochemistry, Utah State University, Logan, Utah 84322, USA
4. Faculty of Mechanical Engineering, University of Ljubljana, Ljubljana 1000, Slovenia