Atomically-thin quantum dots integrated with lithium niobate photonic chips

Daniel White, Artur Branny, Robert J. Chapman, Raphaël Picard, Mauro Brotons-Gisbert, Andreas Boes, Alberto Peruzzo, Cristian Bonato, Brian D. Gerardot*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

30 Citations (Scopus)
122 Downloads (Pure)


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.

Original languageEnglish
Pages (from-to)441-448
Number of pages8
JournalOptical Materials Express
Issue number2
Early online date8 Jan 2019
Publication statusPublished - 1 Feb 2019

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials


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