1. Departamento de Física, Universidad del Valle, Cali, Colombia
2. Departamento de Física, Facultad de Ciencias Naturales y Matemáticas, Universidad de Ibagué, Ibagué, Colombia
3. Department of Electrical Engineering, Eindhoven University of Technology, Eindhoven, Netherlands
4. Department of Photonics Engineering, Technical University of Denmark, Kgs. Lyngby, Denmark
5. ITMO University, St. Petersburg, Russian Federation