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Electrically Driven Site-Controlled Single Photon Source.

ABSTRACT: Single photon sources are fundamental building blocks for quantum communication and computing technologies. In this work, we present a device geometry consisting of gold pillars embedded in a van der Waals heterostructure of graphene, hexagonal boron nitride, and tungsten diselenide. The gold pillars serve to both generate strain and inject charge carriers, allowing us to simultaneously demonstrate the positional control and electrical pumping of a single photon emitter. Moreover, increasing the thickness of the hexagonal boron nitride tunnel barriers restricts electroluminescence but enables electrical control of the emission energy of the site-controlled single photon emitters, with measured energy shifts reaching 40 meV.

SUBMITTER: Guo S

PROVIDER: S-EPMC10436352 | biostudies-literature | 2023 Aug

REPOSITORIES: biostudies-literature

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Electrically Driven Site-Controlled Single Photon Source.

Guo Shi S Germanis Savvas S Taniguchi Takashi T Watanabe Kenji K Withers Freddie F Luxmoore Isaac J IJ

ACS photonics 20230705 8

Single photon sources are fundamental building blocks for quantum communication and computing technologies. In this work, we present a device geometry consisting of gold pillars embedded in a van der Waals heterostructure of graphene, hexagonal boron nitride, and tungsten diselenide. The gold pillars serve to both generate strain and inject charge carriers, allowing us to simultaneously demonstrate the positional control and electrical pumping of a single photon emitter. Moreover, increasing the ...[more]

PMID: 37602287

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