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

摘要

The ever-growing demand for ultracompact micro- and nano-optics is guidedby efficient applications in augmented/virtual reality, displays, and Fourieroptics. The current technologies, mainly based on meta-solutions, suffer interms of efficiency and tunability, as well as complex and multi-stepfabrication methods that may limit their full-scale potential. Herein, abroadband laser composed of close and highly correlated lines allows, viainterference patterning, for simultaneous encoding of multiplexed,independent, and cross-talk free holograms with nanometric separation. Thereported findings show that such light, unusual for holographic recording,unlocks new features of organized collective phenomena, overcoming theusual spatial resolution limitations of the optical techniques. This approachgives promising perspectives for in situ design of reconfigurable structuredoptics, besides the obvious advantages of full-scalability, easiness, costeffectiveness, and time and energy consumption.