About the Authors

Caterina Amendola

Roles Conceptualization, Data curation, Formal analysis, Funding acquisition, Investigation, Methodology, Project administration, Resources, Software, Supervision, Validation, Visualization, Writing – original draft, Writing – review & editing

caterina.amendola@polimi.it

Affiliation Dipartimento di Fisica, Politecnico di Milano, Milan, Italy

Michele Lacerenza

Roles Conceptualization, Data curation, Formal analysis, Funding acquisition, Investigation, Methodology, Project administration, Resources, Software, Supervision, Validation, Visualization, Writing – original draft, Writing – review & editing

Affiliation Dipartimento di Fisica, Politecnico di Milano, Milan, Italy

Ileana Pirovano

Roles Conceptualization, Data curation, Formal analysis, Funding acquisition, Investigation, Methodology, Project administration, Resources, Software, Supervision, Validation, Visualization, Writing – original draft, Writing – review & editing

Affiliation Dipartimento di Fisica, Politecnico di Milano, Milan, Italy

Davide Contini

Roles Conceptualization, Data curation, Formal analysis, Funding acquisition, Investigation, Methodology, Project administration, Resources, Software, Supervision, Validation, Visualization, Writing – original draft, Writing – review & editing

Affiliation Dipartimento di Fisica, Politecnico di Milano, Milan, Italy

Lorenzo Spinelli

Roles Conceptualization, Data curation, Formal analysis, Funding acquisition, Investigation, Methodology, Project administration, Resources, Software, Supervision, Validation, Visualization, Writing – original draft, Writing – review & editing

Affiliation Istituto di Fotonica e Nanotecnologie (IFN), Consiglio Nazionale delle Ricerche, Milan, Italy

Rinaldo Cubeddu

Roles Conceptualization, Data curation, Formal analysis, Funding acquisition, Investigation, Methodology, Project administration, Resources, Software, Supervision, Validation, Visualization, Writing – original draft, Writing – review & editing

Affiliations Dipartimento di Fisica, Politecnico di Milano, Milan, Italy, Istituto di Fotonica e Nanotecnologie (IFN), Consiglio Nazionale delle Ricerche, Milan, Italy

Alessandro Torricelli

Roles Conceptualization, Data curation, Formal analysis, Funding acquisition, Investigation, Methodology, Project administration, Resources, Software, Supervision, Validation, Visualization, Writing – original draft, Writing – review & editing

Affiliations Dipartimento di Fisica, Politecnico di Milano, Milan, Italy, Istituto di Fotonica e Nanotecnologie (IFN), Consiglio Nazionale delle Ricerche, Milan, Italy

Rebecca Re

Roles Conceptualization, Data curation, Formal analysis, Funding acquisition, Investigation, Methodology, Project administration, Resources, Software, Supervision, Validation, Visualization, Writing – original draft, Writing – review & editing

Affiliations Dipartimento di Fisica, Politecnico di Milano, Milan, Italy, Istituto di Fotonica e Nanotecnologie (IFN), Consiglio Nazionale delle Ricerche, Milan, Italy

Competing Interests

I have read the journal’s policy and the authors of this manuscript have the following competing interests: M.L., D.C. and A.T.: pioNIRS S.r.l., Italy (I). Other authors declare no conflicts of interest related to this article. This does not alter our adherence to PLOS ONE policies on sharing data and materials