A synthetic moving-envelope metasurface antenna for independent control of arbitrary harmonic orders.

ABSTRACT: Flexible frequency controls are crucial in many photonic and electronic applications, ranging from communications systems, spectroscopy, and metrology to quantum information processing. However, the state-of-the-art solutions based on nonlinear bulk media, electro-optic effect, and nonlinear metasurfaces incur very limited spectral controllability, and merely a couple of harmonic orders can be independently manipulated. Here, we theoretically propose and experimentally demonstrate synthetic moving-envelope metasurface antennas capable of simultaneously generating arbitrary harmonic orders and independently manipulating their wave properties in a software-defined manner. As proof-of-principle examples, we demonstrate unidirectional frequency transition, frequency comb generation, arbitrary

SUBMITTER: Wu GB 

PROVIDER: S-EPMC11339288 | biostudies-literature | 2024 Aug

REPOSITORIES: biostudies-literature