Nonlinear analog processing with anisotropic nonlinear films.

ABSTRACT: Digital signal processing is the cornerstone of several modern-day technologies, yet in multiple applications it faces critical bottlenecks related to memory and speed constraints. Thanks to recent advances in metasurface design and fabrication, light-based analog computing has emerged as a viable option to partially replace or augment digital approaches. Several light-based analog computing functionalities have been demonstrated using patterned flat optical elements, with great opportunities for integration in compact nanophotonic systems. So far, however, the available operations have been restricted to the linear regime, limiting the impact of this technology to a compactification of Fourier optics systems. In this paper, we introduce nonlinear operations to the field of metasurface-bas

SUBMITTER: Cotrufo M 

PROVIDER: S-EPMC12617739 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature