Diamond processing for quantum technologies
We offer advanced diamond processing services for research and industry. Our technology platform bridges precise nanofabrication with quantum optical functionality, supporting the development of quantum memories, single-photon sources, and quantum sensors.
Tilted view of diamond nanopillars with about 200 nm diameter and 500 nm height.
Core services
Surface preparation
Process: Oxygen- and chlorine-based plasma etching.
Benefits: Removes up to 20 µm of material to eliminate mechanical polishing strain and surface damage.
Result: A well-defined, low-damage foundation with a surface roughness of approximately 0.5 nm rms.
Controlled ion implantation
Process: Targeted ion implantation into high-purity diamond substrates.
Elements: Carbon, nitrogen, silicon, germanium, and tin.
Result: Creates low-noise, high-coherence color centers for efficient quantum memories and advanced sensing.
Nanoscale structuring
Process: Electron-beam lithography tailored to specific application geometries and ICP plasma etching for transferring the lithographically defined structures into the diamond.
Benefits: Fabricates nanoscale pillars housing individual color centers.
Result: Significantly enhances photon collection efficiency for quantum communication and sensing.
Flexible service options
Custom or supplied substrates: Customers can choose to supply their own diamond material or utilize high-purity diamond substrates provided directly by FBH.
Modular commissioning: Select specific processing steps to fit your current R&D pipeline, or commission the complete end-to-end fabrication workflow.
Applications & integration
Our processing platform serves as a comprehensive toolbox for integrating established and emerging color centers into broader photonic systems. Applications range from bright, compact quantum light sources and spin-photon interfaces to high-sensitivity diamond-based sensors.
Backed by extensive research through our Joint Lab Diamond Nanophotonics with Humboldt Universität zu Berlin, FBH delivers scalable, reproducible processes to accelerate your quantum technology developments.