Phys.org  February 8, 2024 Lens design is of paramount importance in the evolving world of technology, where compactness and high optical performance are a necessity. Freeform design techniques allow us to transcend traditional limitations, but creating new optics remains a substantial challenge unless we consider unconventional physical phenomenon. Researchers in France introduced a lens type based on freeform design, employing spiralization of one of its diopters that resulted in optical vortices. This enabled multifocality, primarily serving needs in ophthalmology; however, its potential applications could broadly impact many other domains. According to the researchers their lens design could be crucial in […]