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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A tool for NV diamond plate characterization with 10nm resolution

A tool for NV diamond plate characterization with 10nm resolution

Sergei Trofimov and Boris Naydenov from the Helmholtz Center in Berlin used Qnami Quantum Foundry diamond plates to achieve nanoscale quantum sensing with 13 nm resolution by combining confocal and atomic-force microscopy techniques.
Probing geometry-induced magnetic defects in cylindrical modulated nanowires with optically detected spin resonance in nitrogen-vacancy center in diamondProbing Geometry-Induced Magnetic Defects in Modulated Nanowires with NV Centers in Diamond

Probing Geometry-Induced Magnetic Defects in Modulated Nanowires with NV Centers in Diamond

Researchers led by Jacopo Forneris have demonstrated the fabrication of germanium-vacancy (GeV) color center arrays in diamond nanopillars, showcasing the Quantum Foundry’s expertise in nanopatterning for quantum photonics.
Fabrication of all diamond scanning probes for nanoscale magnetometry

Fabrication of all diamond scanning probes for nanoscale magnetometry

In this seminal work, Patrick Maletinsky and his group review the fabrication of Scanning NV tips. It is the basis for the Qnami Quantilever

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