Monolithic Silicon Carbide Metalenses

TL;DR

This paper presents the design, fabrication, and characterization of monolithic silicon carbide metalenses for on-chip optical applications, advancing integrated quantum photonics and nonlinear optics.

Contribution

It introduces monolithic SiC metalenses with engineered phase profiles, demonstrating their potential for on-chip quantum and photonic systems.

Findings

Successful fabrication of SiC metalenses with parabolic and cubic phase profiles

Optical transmission measurements confirm lens performance

Focal points characterized for near-infrared operation

Abstract

Silicon carbide has emerged as a promising material platform for quantum photonics and nonlinear optics. These properties make the development of integrated photonic components in high-quality silicon carbide a critical aspect for the advancement of scalable on-chip networks. In this work, we numerically design, fabricate and demonstrate the performance of monolithic metalenses from SiC suitable for on-chip optical operations. We engineer two distinct lenses, with parabolic and cubic phase profiles, operating in the near infrared spectral range, which is of interest for quantum and photonic applications. We support the lens fabrication by optical transmission measurement and characterize the focal points of the lenses. Our results will accelerate the development of SiC nanophotonic devices and aid in an on chip integration of quantum emitters with meta-optical components.