High-Q cavity interface for color centers in thin film diamond.

ABSTRACT: Quantum information technology offers the potential to realize unprecedented computational resources via secure channels distributing entanglement between quantum computers. Diamond, as a host to optically-accessible spin qubits, is a leading platform to realize quantum memory nodes needed to extend such quantum links. Photonic crystal (PhC) cavities enhance light-matter interaction and are essential for an efficient interface between spins and photons that are used to store and communicate quantum information respectively. Here, we demonstrate one- and two-dimensional PhC cavities fabricated in thin-film diamonds, featuring quality factors (Q) of 1.8 × 10⁵ and 1.6 × 10⁵, respectively, the highest Qs for visible PhC cavities realized in any material. Importantly, our

SUBMITTER: Ding SW 

PROVIDER: S-EPMC11284222 | biostudies-literature | 2024 Jul

REPOSITORIES: biostudies-literature