Bonn 2025 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 48: Poster – Quantum Optics, Technologies, and Optomechanics
Q 48.35: Poster
Mittwoch, 12. März 2025, 17:00–19:00, Tent
Using a Microfabrication Platform for Direct Laser Writing of NV-Centers and Optical Interfacing on Diamond — •Marina Peters1, Jonas Homrighausen1, Ghulam Raza1, Peter Glösekötter2, and Markus Gregor1 — 1Department of Engineering Physics, FH Münster — 2Department of Electrical Engineering and Computer Science, FH Münster
Nitrogen-vacancy (NV) centers in diamond have proven to be an important resource for applications such as quantum computing and quantum sensing. The precise, deterministic placement of NV centers and their reliable optical coupling is of particular importance. Direct laser writing (DLW) of NV centers in diamond enables high spatial placement control with minimal damage to the lattice [1].
Here we investigate the potential of fabricating NV centers by femtosecond laser pulse treatment using a commercially available microfabrication platform. This offers the opportunity to integrate multiple fabrication processes into a single workflow: precise surface marking for alignment and referencing, the generation of a pattern of NV centers within the diamond lattice, and the fabrication of micro-optical components such as microlenses and waveguides on the diamond substrate for efficient fluorescence extraction and packaging.[2] This approach has the potential to simplify the production and improve the scalability of highly integrated diamond-based quantum devices.
[1] Chen, Y.-C. et al. Optica 6, 662667 (2019). [2] Bogucki, A. et al. Light Sci. Appl. 9, 48 (2020).
Keywords: NV Center; DLW; Packaging