Spectral Alignment of Single-Photon Emitters in Diamond using Strain Gradient

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Solid-state single-photon emitters are attractive for the realization of integrated quantum systems due to their experimental convenience and scalability. Unfortunately, however, their complex mesoscopic environments cause photons from different emitters to be spectrally distinguishable. Here we demonstrate spectral alignment of two solid-state single-photon emitters by utilizing the strain gradient. Multiple germanium-vacancy (GeV) color centers in diamond are created in fabricated diamond microcantilevers using focused ion-beam implantation. The strain response of the electronic energy levels of the GeV is measured by inducing an electrically controlled strain in the device. Leveraging the large strain gradient, we tune two GeVs in the spot to emit at the same optical wavelength. Simultaneous resonant excitation of two spectrally aligned GeVs is demonstrated using a narrow linewidth laser. This strain gradient tuning can be used to realize spectrally identical quantum emitters for on-chip integrated quantum systems.
Publisher
AMER PHYSICAL SOC
Issue Date
2018-08
Language
English
Article Type
Article
Citation

PHYSICAL REVIEW APPLIED, v.10, no.2

ISSN
2331-7019
DOI
10.1103/PhysRevApplied.10.024050
URI
http://hdl.handle.net/10203/277537
Appears in Collection
EE-Journal Papers(저널논문)
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