Integration of germanium-vacancy single photon emitters arrays in diamond nanopillars

Image credit: https://epjquantumtechnology.springeropen.com/articles/10.1140/epjqt/s40507-025-00329-2

Integration of Germanium-Vacancy Single-Photon Emitter Arrays in Diamond Nanopillars

Researchers have successfully fabricated and characterized germanium-vacancy (GeV) color center arrays in diamond, a crucial step toward the development of integrated photonic chips. Using focused ion beam (FIB) implantation with Ge²⁺ ions at nanometer precision, they created emitter arrays aligned to 300 nm nanopillar waveguides, enhancing photon collection efficiency and signal-to-background ratio by a factor of 8. Importantly, the photophysical properties of the GeV centers remained unaltered, demonstrating the robustness of this approach.

This work, led by Jacopo Forneris, highlights the Quantum Foundry’s expertise in nanopatterning materials with color centers beyond NVs, paving the way for new applications in quantum photonics.

Read the full article: EPJ Quantum Technology.

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Probing Weak Magnetic Defects in Nanowires with Scanning NV Magnetometry

Probing Weak Magnetic Defects in Nanowires with Scanning NV Magnetometry

Scanning NV Magnetometry reveals nanoscopic weak magnetic inhomogeneities in nanowires never observed before by standard characterization tools.
Fabrication of High-Quality Thin Single-Crystal Diamond Membranes with Low Surface Roughness

Fabrication of High-Quality Thin Single-Crystal Diamond Membranes with Low Surface Roughness

Qnami Quantum foundry helps to improve diamond membranes
Dense ensembles of NV centers used to investigate the correlation between superconductivity and ferromagnetism

Dense ensembles of NV centers used to investigate the correlation between superconductivity and ferromagnetism

Researchers used NV-based quantum sensing to reveal the coexistence of superconductivity and ferromagnetism in FeTexSe1–x, leveraging Quantum Foundry-engineered diamond plates for wide-field imaging.

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