AI 中文总结
本研究构建了混合纳米光子平台，通过键合SiC纳米腔阵列到LNOI实现电调谐，以补偿腔无序与自旋非均匀性，为大规模集成量子光子学提供可重构自旋-光子接口
AI 中文摘要
集成光子学与固态自旋缺陷的接口技术对未来量子网络极具应用前景，但自旋-光子架构的规模化发展受限于两大问题：一是光子腔谐振的制备诱导变异，二是单个自旋的非均匀光学跃迁频率，二者共同导致了频率失配。这些挑战亟需具备确定性宽范围调谐能力的光子平台。本研究展示了一种混合纳米光子平台，通过将碳化硅光子晶体纳米腔阵列直接键合到绝缘衬底上的薄膜铌酸锂（LNOI）上，实现了对多个碳化硅（SiC）纳米腔的确定性电调谐，使其达到相互光谱谐振。利用铌酸锂的强电光响应，研究人员实现了380 GHz（约1.1 nm）的连续宽范围腔调谐，足以补偿腔无序和自旋非均匀性。该纳米腔在强光限域与电调谐之间实现了平衡，理论珀塞尔因子约为400。这种混合平台可为大规模集成量子光子学构建电可重构的自旋-光子接口。
英文摘要
Interfacing integrated photonics with solid-state spin defects holds great promise for future quantum networks, but the scaling of spin-photon architectures is hindered by frequency mismatches arising from fabrication-induced variations in photonic cavity resonances and the inhomogeneous optical transition frequencies of individual spins. These challenges call for a photonic platform with deterministic and wide-range tunability. Here, we demonstrate a hybrid nanophotonic platform based on direct bonding of silicon carbide photonic crystal nanocavity arrays onto thin-film lithium niobate on insulator, enabling deterministic electrical tuning of multiple SiC nanocavities into mutual spectral resonance. By exploiting the strong electro-optic response of lithium niobate, we achieve continuous and wide-range cavity tuning of 380 GHz ($\sim$1.1 nm), sufficient to compensate both cavity disorder and spin inhomogeneity. The nanocavities balance strong optical confinement with electrical tunability, exhibiting a theoretical Purcell factor of approximately 400. This hybrid platform enables electrically reconfigurable spin-photon interfaces for large-scale integrated quantum photonics.
