Integration of diamond nanobeams with SnVs on Al2O3 waveguides for scalable quantum photonic chip application

Nv-Center Qubit is a spin-photon qubit approach for quantum computing hardware. Source: pdf text.

Abstract

Tin vacancy (SnV) centers in diamond are promising solid state qubits for integrated quantum photonics. Here, we fabricate and characterize a diamond on Al2O3 dual taper waveguide structure containing SnV centers, demonstrating optical coupling between the diamond nanobeam and the underlying Al2O3 waveguide. The devices are realized using a bilayer fabrication approach compatible with wafer scale lithography. Clear guided SnV- emission is observed in all optically active devices, indicating effective optical coupling in the integrated structure. These results demonstrate a scalable fabrication approach toward integrating diamond color centers with photonic waveguides.

Key Findings

Links

• arXiv: 2606.18711

Verification Report

Verification status: verified. Disputes resolved: 0. Citation count snapshot (Semantic Scholar): 0. Ingestion source: pdf. Text truncated: no.

Ingestion notes:

• LaTeX source extraction failed