[24a-E301-1~10] 3.11 Photonic structures and phenomena

▲ [24a-E301-5] Design of a photonic crystal nanobeam cavity in AlN-diamond hybrid platform

〇(M2)Yeting Yang^1,2, Feng Tian¹, Sangmin Ji^1,2, Satoshi Iwamoto^1,2 (1.RCAST, 2.IIS)

Keywords:Photonic crystal, nano cavities, Nitrogen vacancy centers

Quantum repeaters and quantum interfaces are indispensable devices for networking distant quantum systems including quantum processors. As a platform for these devices, hybrid structures comprised of a diamond with color centers and another dielectric material are receiving great attention. We previously reported a design of a diamond photonic crystal (PhC) nanobeam cavity integrated on a SiN waveguide. On the other hand, an AlN-diamond hybrid structure, where large piezoelectricity of AlN is available, is a promising structure for realizing an efficient quantum interface between a microwave photon and a near-infrared photon. Here, we report a design of a high-Q (>10,000) PhC nanobeam cavity in the AlN-diamond hybrid platform.