Hybrid Si-GST Polarization-Insensitive Dynamically Tunable Bifocal Metalens Operating at 1.55-$\hat{I}¼$m Wavelength

Dipika Rani Nath, Sadid Muneer, Sajid Muhaimin Choudhury

Metasurfaces have become a cornerstone of flat-optics, enabling precise control over light propagation through nanoengineered materials. Dynamic and reconfigurable metalenses are k…