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arXiv · 2208.13488

Localized creation of yellow single photon emitting carbon complexes in hexagonal boron nitride

Anand Kumar·Chanaprom Cholsuk·Ashkan Zand·Mohammad N. Mishuk·Tjorben Matthes·Falk Eilenberger·Sujin Suwanna·Tobias Vogl
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Abstract

Single photon emitters in solid-state crystals have received a lot of attention as building blocks for numerous quantum technology applications. Fluorescent defects in hexagonal boron nitride (hBN) stand out due to their high luminosity and robust operation at room temperature. The identical emitter fabrication at pre-defined sites is still challenging, which hampers the integration of these defects in optical systems and electro-optical devices. Here, we demonstrate the localized fabrication of hBN emitter arrays by electron beam irradiation using a standard scanning electron microscope with deep sub-micron lateral precision. The emitters are created with a high yield and a reproducible spectrum peaking at 575 nm. Our measurements of optically detected magnetic resonance have not revealed any addressable spin states. Using density functional theory, we attribute the experimentally observed emission lines to carbon-related defects, which are activated by the electron beam. Our scalable approach provides a promising pathway for fabricating room temperature single photon emitters in integrated quantum devices.

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Anand Kumar, Chanaprom Cholsuk, Ashkan Zand, Mohammad N. Mishuk, Tjorben Matthes, Falk Eilenberger, Sujin Suwanna, Tobias Vogl. 2022-08-29. Localized creation of yellow single photon emitting carbon complexes in hexagonal boron nitride. https://doi.org/10.1063/5.0147560

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