Mainz 2026 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 80: Quantum Technologies – Color Centers III
Q 80.1: Vortrag
Freitag, 6. März 2026, 14:30–14:45, P 5
Spectral diffusion and spin signatures of quantum emitters in hexagonal Boron Nitride — •Alexander Pachl1, Sajedeh Shahbazi1, and Alexander Kubanek1,2 — 11Institut for Quantum Optics, University Ulm, 89081 Ulm, Germany — 2Center for Integrated Quantum Science and Technology (IQst), Ulm University, 89081 Ulm, Germany
Single-photon emitters hosted in hexagonal boron nitride (hBN) are, due to their bright and narrow zero-phonon lines (ZPLs) and their two-dimensional host material, promising candidates for integration into upcoming quantum optical technologies. Mechanically decoupled emitters have even shown Fourier-transform-limited linewidths up to room temperature [1,2]. However, these emitters typically suffer from fast spectral diffusion and have so far not shown any spin signatures. In our most recent work, we address these limitations and report observed spin signatures together with an investigation of the fast sprecral diffusion properties.
[1] A. Dietrich et al., Physical Review B, Vol. 98 (2018)
[2] A. Dietrich et al., Physical Review B, Vol. 101 (2020)
Keywords: single quantum emitter; spectral diffusion; spin signatures; hexagonal Boron Nitride; crystal defect