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20 August 2020 On-chip single photon emission from a waveguide-coupled two-dimensional semiconductor
Carlos Errando-Herranz, Eva Schöll, Raphael Picard, Micaela Laini, Samuel Gyger, Ali W. Elshaari, Artur Branny, Ulrika Wennberg, Mauro Brotons I Gisbert, Cristian Bonato, Brian D. Gerardot, Valery Zwiller, Klaus D. Jöns
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Proceedings Volume 11471, Quantum Nanophotonic Materials, Devices, and Systems 2020; 1147105 (2020) https://doi.org/10.1117/12.2567240
Event: SPIE Nanoscience + Engineering, 2020, Online Only
Abstract
In recent years, two-dimensional semiconductor quantum emitters have gotten substantial attention from the solid-state quantum photonics community. Their potential for on-chip integration in silicon-based photonics makes them an ideal candidate to realize large-scale hybrid quantum photonic circuits. Given the strain-induced quantum emitter formation in two-dimensional WSe2, coupling of such quantum emitters into a SiN photonic waveguides is very promising. However, demonstration of single-photon emission into a waveguide has been elusive so far. Here, we show single-photon emission of strain-induced quantum emitters in a 2D flake integrated into a SiN waveguide. We take advantage of the waveguide edges as nucleation sites for quantum emitters. We observe single-photon emission coupled into the waveguide with a g(2)(0) = 0.15±0.09. This result opens up the way towards large-scale 2D emitter integration in on-chip quantum photonic circuits.
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Carlos Errando-Herranz, Eva Schöll, Raphael Picard, Micaela Laini, Samuel Gyger, Ali W. Elshaari, Artur Branny, Ulrika Wennberg, Mauro Brotons I Gisbert, Cristian Bonato, Brian D. Gerardot, Valery Zwiller, and Klaus D. Jöns "On-chip single photon emission from a waveguide-coupled two-dimensional semiconductor", Proc. SPIE 11471, Quantum Nanophotonic Materials, Devices, and Systems 2020, 1147105 (20 August 2020); https://doi.org/10.1117/12.2567240
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KEYWORDS
Single photon
Waveguides
Photonic integrated circuits
Semiconductors
Quantum communications
Light sources
Photonic devices
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