Silicon Carbide photonic platform based on suspended subwavelength waveguides

Abstract

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.

arXiv comment9 pages, 6 figures

References in corpus (12)

• Coherent control of single spins in silicon carbide at room temperature
• Near-unity coupling efficiency of a quantum emitter to a photonic-crystal waveguide
• Nanophotonic Lithium Niobate Electro-optic Modulators
• Isolated electron spins in silicon carbide with millisecond-coherence times
• Polytype control of spin qubits in silicon carbide
• High-fidelity spin and optical control of single silicon vacancy centres in silicon carbide
• Isolated spin qubits in SiC with a high-fidelity infrared spin-to-photon interface
• Locking of electron spin coherence over fifty milliseconds in natural silicon carbide
• Silicon Carbide Photonic Crystal Cavities with Integrated Color Centers
• Second-harmonic generation and linear electro-optical coefficients of SiC polytypes and nanotubes
• Four wave mixing in 3C SiC Ring Resonators
• High-Q/V two-dimensional photonic crystals cavities in 3C-SiC