Two-photon interference from silicon-vacancy centers in remote nanodiamonds

Abstract The generation of indistinguishable photons is a key requirement for solid-state quantum emitters as viable source applications in technologies. Restricting the dimensions host to size well below wavelength light emitted by defect-center enables efficient external optical coupling, example, hybrid integration into photonic devices. However, stringent restrictions on result severe limitations spectral properties reducing indistinguishability photons. Here, we demonstrate two-photon interference from two negatively charged silicon-vacancy centers located remote nanodiamonds. Hong–Ou–Mandel efficiency reaches 61 % with coalescence time window 0.35 ns. We furthermore show high yield pairs transitions. Therefore, our work opens new paths technology based single-photon