On-chip generation of single-photon circularly polarized single-mode vortex beams

Xujing Liu; Yinhui Kan; Shailesh Kumar; Danylo Komisar; Changying Zhao; Sergey I. Bozhevolnyi

doi:10.1126/sciadv.adh0725

On-chip generation of single-photon circularly polarized single-mode vortex beams

Xujing Liu, Yinhui Kan, Shailesh Kumar, Danylo Komisar, Changying Zhao, Sergey I. Bozhevolnyi^*

^*Kontaktforfatter

Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › peer review

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Abstract

Generation of single photons carrying spin and orbital angular momenta (SAM and OAM) opens enticing perspectives for exploiting multiple degrees of freedom for high-dimensional quantum systems. However, on-chip generation of single photons encoded with single-mode SAM-OAM states has been a major challenge. Here, by using carefully designed anisotropic nanodimers fabricated atop a substrate, supporting surface plasmon polariton (SPP) propagation, and accurately positioned around a quantum emitter (QE), we enable nonradiative QE-SPP coupling and the SPP outcoupling into free-space propagating radiation featuring the designed SAM and OAM. We demonstrate on-chip room-temperature generation of well-collimated (divergence < 7.5°) circularly polarized (chirality > 0.97) single-mode vortex beams with different topological charges (l = 0, 1, and 2) and high single-photon purity, g⁽²⁾(0) < 0.15. The developed approach can straightforwardly be extended to produce multiple, differently polarized, single-mode single-photon radiation channels and enable thereby realization of high-dimensional quantum sources for advanced quantum photonic technologies.

Originalsprog	Engelsk
Artikelnummer	eadh0725
Tidsskrift	Science Advances
Vol/bind	9
Udgave nummer	32
Antal sider	9
ISSN	2375-2548
DOI	https://doi.org/10.1126/sciadv.adh0725
Status	Udgivet - 9. aug. 2023

Bibliografisk note

Funding Information:
This work was supported by the National Natural Science Foundation of China grant 52120105009 (to C.Z.), National Natural Science Foundation of China grant 62105150 (to Y.K.), European Union’s Horizon Europe Research and Innovation Programme under the Marie Skłodowska-Curie Action grant 101064471 (to Y.K.), Natural Science Foundation of Jiangsu Province grant BK20210289 (to Y.K.), Shanghai Key Fundamental Research grant 20JC1414800 (to C.Z.), State Key Laboratory of Advanced Optical Communication Systems Networks of China grant 2022GZKF023 (to Y.K.), and Villum Kann Rasmussen Foundation (award in Technical and Natural Sciences 2019) (to S.I.B.).

Publisher Copyright:
Copyright © 2023 The Authors, some rights reserved.

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10.1126/sciadv.adh0725Licens: CC BY-NC

open access versionForlagets udgivne version, 1,32 MBLicens: CC BY

Citationsformater

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abstract = "Generation of single photons carrying spin and orbital angular momenta (SAM and OAM) opens enticing perspectives for exploiting multiple degrees of freedom for high-dimensional quantum systems. However, on-chip generation of single photons encoded with single-mode SAM-OAM states has been a major challenge. Here, by using carefully designed anisotropic nanodimers fabricated atop a substrate, supporting surface plasmon polariton (SPP) propagation, and accurately positioned around a quantum emitter (QE), we enable nonradiative QE-SPP coupling and the SPP outcoupling into free-space propagating radiation featuring the designed SAM and OAM. We demonstrate on-chip room-temperature generation of well-collimated (divergence < 7.5°) circularly polarized (chirality > 0.97) single-mode vortex beams with different topological charges (l = 0, 1, and 2) and high single-photon purity, g(2)(0) < 0.15. The developed approach can straightforwardly be extended to produce multiple, differently polarized, single-mode single-photon radiation channels and enable thereby realization of high-dimensional quantum sources for advanced quantum photonic technologies.",

author = "Xujing Liu and Yinhui Kan and Shailesh Kumar and Danylo Komisar and Changying Zhao and Bozhevolnyi, {Sergey I.}",

note = "Funding Information: This work was supported by the National Natural Science Foundation of China grant 52120105009 (to C.Z.), National Natural Science Foundation of China grant 62105150 (to Y.K.), European Union{\textquoteright}s Horizon Europe Research and Innovation Programme under the Marie Sk{\l}odowska-Curie Action grant 101064471 (to Y.K.), Natural Science Foundation of Jiangsu Province grant BK20210289 (to Y.K.), Shanghai Key Fundamental Research grant 20JC1414800 (to C.Z.), State Key Laboratory of Advanced Optical Communication Systems Networks of China grant 2022GZKF023 (to Y.K.), and Villum Kann Rasmussen Foundation (award in Technical and Natural Sciences 2019) (to S.I.B.). Publisher Copyright: Copyright {\textcopyright} 2023 The Authors, some rights reserved.",

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AU - Bozhevolnyi, Sergey I.

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N2 - Generation of single photons carrying spin and orbital angular momenta (SAM and OAM) opens enticing perspectives for exploiting multiple degrees of freedom for high-dimensional quantum systems. However, on-chip generation of single photons encoded with single-mode SAM-OAM states has been a major challenge. Here, by using carefully designed anisotropic nanodimers fabricated atop a substrate, supporting surface plasmon polariton (SPP) propagation, and accurately positioned around a quantum emitter (QE), we enable nonradiative QE-SPP coupling and the SPP outcoupling into free-space propagating radiation featuring the designed SAM and OAM. We demonstrate on-chip room-temperature generation of well-collimated (divergence < 7.5°) circularly polarized (chirality > 0.97) single-mode vortex beams with different topological charges (l = 0, 1, and 2) and high single-photon purity, g(2)(0) < 0.15. The developed approach can straightforwardly be extended to produce multiple, differently polarized, single-mode single-photon radiation channels and enable thereby realization of high-dimensional quantum sources for advanced quantum photonic technologies.

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On-chip generation of single-photon circularly polarized single-mode vortex beams

Abstract

Bibliografisk note

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