Photonics and Electromagnetics Research Symposium - Spring (Piers-Spring), Date: JUN 17-20, 2019, Location: Rome, ITALY, Sponsors: Inst Elect & Elect Engineers, Assoc Res Advancement Photon & Elect Engn, Electromagnet Acad, Sapienza Univ Rome, Fac Civil & Ind Engn, IEEE Geoscience & Remote Sensing Soc, IEEE Antennas & Propagat Soc, IEEE Photon Soc, Italy Chapter, Italian Soc Elect, Italian Soci Electromagnet, Italian Soc Opt & Photon, Ist Italiano Tecnologia, Gallium Arsenide Applicat Symposium, Sapienza Univ Rome, Fac Informat Engn, Comp Sci & Stat