论文标题

基于悬浮次波长波导的硅碳化物光子平台

Silicon Carbide photonic platform based on suspended subwavelength waveguides

论文作者

Garrisi, Francesco, Chatzopoulos, Ioannis, Cernansky, Robert, Politi, Alberto

论文摘要

碳化硅(SIC)显示了光学和自旋相关特性的独特组合,使其对光子学和量子技术变得有趣。但是,通过全部反射的指导光可能难以实现,尤其是当SiC在较高的指数底物上(如硅)上生长为薄膜时。制造悬挂的,次波长的波导需要单个光刻的步骤,并为限制问题提供了解决方案,同时保留了可扩展且完整的光子平台所需的设计灵活性。在这里,我们提出了此类平台的设计,可用于古典和量子光学操作。我们模拟了关键的光学组件,并分析了如何利用SIC及其缺陷的高非线性。

Silicon carbide (SiC) displays a unique combination of optical and spin-related properties that make it interesting for photonics and quantum technologies. However, guiding light by total internal reflection can be difficult to achieve, especially when SiC is grown as thin films on higher index substrates, like Silicon. Fabricating suspended, subwavelength waveguides requires a single lithography step and offers a solution to the confinement problem, while preserving the design flexibility required for a scalable and complete photonic platform. Here we present a design for such platform, that can be used for both classical and quantum optics operation. We simulate the key optical components and analyze how to exploit the high nonlinearities of SiC and its defects.

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