Light structuring via nonlinear total angular momentum addition with flat optics.

ABSTRACT: Shaping the structure of light with flat optical devices has driven significant advancements in our fundamental understanding of light and light-matter interactions, and enabled a broad range of applications, from image processing and microscopy to optical communication, quantum information processing, and the manipulation of microparticles. Yet, pushing the boundaries of structured light beyond the linear optical regime remains an open challenge. Nonlinear optical interactions, such as wave mixing in nonlinear flat optics, offer a powerful platform to unlock new degrees of freedom and functionalities for generating and detecting structured light. In this study, we experimentally demonstrate the non-trivial structuring of third-harmonic light enabled by the addition of total angular moment

SUBMITTER: Menshikov E 

PROVIDER: S-EPMC12612144 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature