Integration of GaAs waveguides on a silicon substrate for quantum photonic circuits

Autor: Atefeh Shadmani, Rodrigo A. Thomas, Zhe Liu, Camille Papon, Martijn J. R. Heck, Nicolas Volet, Sven Scholz, Andreas D. Wieck, Arne Ludwig, Peter Lodahl, Leonardo Midolo

Publikováno v: Shadmani, A, Thomas, R A, Liu, Z, Papon, C, Heck, M J R, Volet, N, Scholz, S, Wieck, A D, Ludwig, A, Lodahl, P & Midolo, L 2022, ' Integration of GaAs waveguides on a silicon substrate for quantum photonic circuits ', Optics Express, vol. 30, no. 21, pp. 37595-37602 . https://doi.org/10.1364/OE.467920

We report a method for integrating GaAs waveguide circuits containing self-assembled quantum dots on a Si/SiO2 wafer, using die-to-wafer bonding. The large refractive-index contrast between GaAs and SiO2 enables fabricating single-mode waveguides wit

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::822f200e05b1bc2f01f424c74222b62d
https://pure.au.dk/portal/da/publications/integration-of-gaas-waveguides-on-a-silicon-substrate-for-quantum-photonic-circuits(89026313-4af6-45bb-821f-1bb3ed48cc15).html

Electroabsorption in gated GaAs nanophotonic waveguides

Autor: Ravitej Uppu, Peter Lodahl, Camille Papon, Andreas D. Wieck, Arne Ludwig, Xiaoyan Zhou, Leonardo Midolo, Ying Wang, Sven Scholz

Publikováno v: Wang, Y, Uppu, R, Zhou, X, Papon, C, Scholz, S, Wieck, A D, Ludwig, A, Lodahl, P & Midolo, L 2021, ' Electroabsorption in gated GaAs nanophotonic waveguides ', Applied Physics Letters, vol. 118, no. 13, 131106 . https://doi.org/10.1063/5.0039373

We report on the analysis of electroabsorption in thin GaAs/Al$_{0.3}$Ga$_{0.7}$As nanophotonic waveguides with an embedded $p$-$i$-$n$ junction. By measuring the transmission through waveguides of different lengths, we derive the propagation loss as

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ddadb98904066b4391169b2d836f8f18
http://arxiv.org/abs/2102.06119

On-chip nano-electro-mechanical switching of deterministic single photons

Autor: Xiaoyan Zhou, Camille Papon, Henri Thyrrestrup, Zhe Liu, Søren Stobbe, Rüdiger Schott, Andreas D. Wieck, Arne Ludwig, Peter Lodahl, null LeonardoMidolo

Publikováno v: Zhou, X, Papon, C, Thyrrestrup, H, Liu, Z, Stobbe, S, Schott, R, Wieck, A D, Ludwig, A, Lodahl, P & Midolo, L 2019, On-chip nano-electro-mechanical switching of deterministic single photons . in Conference on Lasers and Electro-Optics (CLEO) & Exhibition . The Optical Society of America edn, vol. 39, IEEE, San Jose Convention Center, San Jose, United States, Conference on Lasers and Electro-Optics, no. 39, vol. 2, . https://doi.org/10.1364/CLEO_QELS.2019.FTh3D.2
Zhou, X, Papon, C, Thyrrestrup, H, Liu, Z, Stobbe, S, Schott, R, Wieck, A D, Ludwig, A, Lodahl, P & Midolo, L 2019, On-chip nano-electro-mechanical switching of deterministic single photons . in Proceedings of 2019 Conference on Lasers and Electro-Optics ., 8749753, IEEE, 2019 Conference on Lasers and Electro-Optics, CLEO 2019-Proceedings, 2019 CLEO Conference & Exhibition, San Jose, California, United States, 05/05/2019 . https://doi.org/10.23919/CLEO.2019.8749753

We demonstrate a nano-electro-mechanical single-photon router integrated with semiconductor quantum emitters, showing an extinction ratio of > 20 mathrm{dB} and operation speed of MHz with insertion loss of 0.67 dB and footprint < 30mu m-{2}.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b5ea063e4fc0ebc458ee46da61788941
https://curis.ku.dk/ws/files/251577709/On_chip_nano_electro_mechanical_switching_of_deterministic_single_photons.pdf

Nanomechanical single-photon routing

Autor: Xiaoyan Zhou, Henri Thyrrestrup, Leonardo Midolo, Peter Lodahl, Andreas D. Wieck, Rüdiger Schott, Søren Stobbe, Arne Ludwig, Zhe Liu, Camille Papon

Publikováno v: Optica
Papon, C, Zhou, X, Thyrrestrup, H, Liu, Z, Stobbe, S, Schott, R, D Wieck, A, Ludwig, A, Lodahl, P & Midolo, L 2019, ' Nanomechanical single-photon routing ', Optica, vol. 6, no. 4, pp. 524-530 . https://doi.org/10.1364/OPTICA.6.000524
Papon, C, Zhou, X, Nielsen, H T, Liu, Z, Stobbe, S, Schott, R, Wieck, A D, Ludwig, A, Lodahl, P & Midolo, L 2019, ' Nanomechanical single-photon routing ', Optica, vol. 6, no. 4, pp. 542-530 . https://doi.org/10.1364/OPTICA.6.000524

The merger between integrated photonics and quantum optics promises new opportunities within photonic quantum technology with the very significant progress on excellent photon-emitter interfaces and advanced optical circuits. A key missing functional

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f300404947010e46a34ae1fb2edad752
http://arxiv.org/abs/1811.10962

Spin-Photon Interface Controlled Optical Switching in a Nanobeam Waveguide

Autor: Tommaso Pregnolato, Matthias C. Löbl, Søren Stobbe, Dapeng Ding, Arne Ludwig, Rudiger Schott, Sahand Mahmoodian, Immo Söllner, Peter Lodahl, Leonardo Midolo, Martin Hayhurst Appel, Andreas D. Wieck, Alisa Javadi, Tim Schröder, Camille Papon, Richard J. Warburton

Publikováno v: Scopus-Elsevier

We demonstrate a single InGaAs quantum dot electron spin controlled photon switch in a nanobeam waveguide with 4-fold switching ratio, a spin-state preparation fidelity of 96%, and a lifetime T 1 approaching 5 μs.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::665af8b649c47f3fd6662b8c0a6f782c
http://www.scopus.com/inward/record.url?eid=2-s2.0-85052581860&partnerID=MN8TOARS