Atomically-thin quantum dots integrated with lithium niobate photonic chips

Abstract

The electro-optic, acousto-optic and nonlinear properties of lithium niobate make it a highly versatile material platform for integrated quantum photonic circuits. A prerequisite for quantum technology applications is the ability to efficiently integrate single photon sources, and to guide the generated photons through ad-hoc circuits. Here we report the integration of quantum dots in monolayer WSe2 into a Ti in-diffused lithium niobate directional coupler. We investigate the coupling of individual quantum dots to the waveguide mode, their spatial overlap, and the overall efficiency of the hybrid-integrated photonic circuit.

References in corpus (4)

• Deterministic strain-induced arrays of quantum emitters in a two-dimensional semiconductor
• Strain-induced spatial and spectral isolation of quantum emitters in mono- and bi-layer WSe2
• On-demand generation of background--free single photons from a solid-state source
• Nanophotonic coherent light-matter interfaces based on rare-earth-doped crystals