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THU: Thursday Contributed Sessions
THU 13: Poster Session: Applications
THU 13.55: Poster
Donnerstag, 11. September 2025, 16:30–18:30, ZHG Foyer 1. OG
Widefield fluorescence microscopy of color centers in diamond — •Caius Niemann1, Leonie Eggers1,2, Konstantin Beck1, Nick Brinkmann1,2, Sunil Kumar Mahato1,2, Donika Imeri1,2, Elaheh Bakhshaei Ghoroghaghaei1,2, Rikhav Shah1, and Ralf Riedinger1,2 — 1Zentrum für Optische Quantentechnologien, Universität Hamburg, 22761 Hamburg, Germany — 2The Hamburg Centre for Ultrafast Imaging, 22761 Hamburg, Germany
Color centers in diamond combined, with nanophotonic structures, are a promising platform for quantum communication applications. Various elements are being studied as building blocks of these quantum memories, but Silicon and Nickel are especially promising due to their insensitivity to noise.
We demonstrate a custom widefield microscope for imaging, and possibly spectral analysis, of silicon-vacancy (SiV) and nickel-vacancy (NiV) centers in diamond using photoluminescent excitation. The device is composed of readily available parts only and uses a cooled camera to achieve comparable results to high-end confocal microscopes. This is a simpler and low-cost solution compared to pre-built confocal solutions and enables in-house characterisation of implanted diamond samples.
Keywords: Color Centers in Diamond; SiV; Quantum Communication; Fluorescence Microscopy