Highly Resolved and Cross‐Talk Free Multiplexed Holograms via Broadband Vectorial Interferometry

The ever-growing demand for ultracompact micro- and nano-optics is guided by efficient applications in augmented/virtual reality, displays, Fourier optics. current technologies, mainly based on meta-solutions, suffer terms of efficiency tunability, as well complex multi-step fabrication methods that may limit their full-scale potential. Herein, a broadband laser composed close highly correlated lines allows, via interference patterning, simultaneous encoding multiplexed, independent, cross-talk free holograms with nanometric separation. reported findings show such light, unusual holographic recording, unlocks new features organized collective phenomena, overcoming the usual spatial resolution limitations optical techniques. This approach gives promising perspectives situ design reconfigurable structured optics, besides obvious advantages full-scalability, easiness, cost effectiveness, time energy consumption.