2016/03/31 by Benjamin Lienhard, Tim Schröder, Sara Mouradian +4 · 1 citation
Physics and Astronomy · #quant-ph #cond-mat.mes-hall #physics.atom-ph
paper · pdf · doi:10.1364/optica.3.000768
published as Optica 3, 768-774 (2016)
arxiv created 2021/02/25 · arxiv updated 2021/02/26
Single-photon sources are of paramount importance in quantum communication, quantum computation, and quantum metrology. In particular, there is great interest in realizing scalable solid-state platforms that can emit triggered photons on demand to achieve scalable nanophotonic networks. We report on a visible-spectrum single-photon emitter in 4H silicon carbide (SiC). The emitter is photostable at room and low temperatures, enabling photon counts per second in excess of 2×106 from unpatterned bulk SiC. It exists in two orthogonally polarized states, which have parallel absorption and emission dipole orientations. Low-temperature measurements reveal a narrow zero phonon line (linewidth <0.1~nm) that accounts for >30% of the total photoluminescence spectrum.