About the Authors

Haroldo V. Ribeiro

hvr@dfi.uem.br

Affiliation Departamento de Física and National Institute of Science and Technology for Complex Systems, Universidade Estadual de Maringá, Maringá, Brazil

Luciano Zunino

Affiliations Centro de Investigaciones Ópticas (CONICET La Plata - CIC), C.C. 3, Gonnet, Argentina, Departamento de Ciencias Básicas, Facultad de Ingeniería, Universidad Nacional de La Plata, La Plata, Argentina

Ervin K. Lenzi

Affiliation Departamento de Física and National Institute of Science and Technology for Complex Systems, Universidade Estadual de Maringá, Maringá, Brazil

Perseu A. Santoro

Affiliation Departamento de Física and National Institute of Science and Technology for Complex Systems, Universidade Estadual de Maringá, Maringá, Brazil

Renio S. Mendes

Affiliation Departamento de Física and National Institute of Science and Technology for Complex Systems, Universidade Estadual de Maringá, Maringá, Brazil

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: HVR. Performed the experiments: HVR PAS EKL. Analyzed the data: HVR PAS. Contributed reagents/materials/analysis tools: LZ RSM EKL. Wrote the paper: HVR LZ RSM.