Speaker
Description
Structured light has revolutionized optical beam shaping, allowing for advanced control over phase, polarization, and orbital angular momentum (OAM). However, the generation and manipulation of non -separable spin–orbit states often rely on bulky and complex optical setups. Metasurfaces overcome these limitations, offering compact, planar devices with complete control of phase and polarization [1]. This talk outlines the design, fabrication and characterization of spin-decoupled metasurfaces (SDMS) able to tailor independently right- and left-handed circular polarizations leading to the compact and efficient generation and manipulation of structured beams [2,3].
[1] Vogliardi, A.,et al. (2023). Dual-functional metalenses for the polarization-controlled generation of focalized vector beams in the telecom infrared. Scientific Reports, 13(1), 10327.
[2] Vogliardi, A., et al. (2025). Azimuthally-variant perfect vector beams for the control of arbitrary phase and polarization ring patterns. Light: Science & Applications, 14(1), 183.
[3] Vogliardi, A., et al. (2024). Helico-conical vector beams for intensity and polarization 3D light shaping. Optica, 11(12), 1628-1631.
Andrea Vogliardi received his PhD in Physics in 2025 from the University of Padua, where he is now a Postdoctoral Researcher. His work focuses on designing metasurfaces for telecommunications, microscopy, and quantum applications, with an emphasis on structured light, exotic beams, singular optics, and the (de)multiplexing of orbital angular momentum. He has published in leading optics journals, including Light: Science & Applications, Optica, and Laser & Photonics Reviews, and presented at international conferences receiving also the "Best Student Paper" award at SPIE Optics+Optoelectronics 2025. He is a member of SIOF and SPIE.
