1. Dipartimento di Ingegneria Elettrica e dell’Informazione (Department of Electrical and Information Engineering), Politecnico di Bari, Via Edoardo Orabona n. 4, 70125 Bari, Italy
2. School of Electrical and Electronic Engineering, Photonics Research Centre, Technological University Dublin, Grangegorman, D07 ADY7 Dublin, Ireland
3. Department of Dermatology, University of Rochester, Rochester, NY 14642, USA