Bonn 2025 – scientific programme
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Q: Fachverband Quantenoptik und Photonik
Q 49: Poster – Photonics, Lasers, and Applications
Q 49.23: Poster
Wednesday, March 12, 2025, 17:00–19:00, Tent
Limits for coherent optical control of quantum emitters in hexagonal Boron Nitride — •Alexander Pachl1, Michael K. Koch1,2, Vibhav Bharadwaj1,3, and Alexander Kubanek1,2 — 1Institut for Quantum Optics, University Ulm, 89081 Ulm, Germany — 2Center for Integrated Quantum Science and Technology (IQst), Ulm University, 89081 Ulm, Germany — 3Department of Physics, Indian Institute of Technology Guwahati, 781039 Guwahati, Assam, India
Single Photon emitters hosted in hexagonal Boron Nitride (hBN) are promising candidates for integration into upcoming quantum optical technologies. Some of these emitters show a very interesting and promising optical property of Fourier transform limited linewidth up to room temperature [1,2]. This can be explained by out-of-plane distorted defects, which show a weak coupling to low energy in-plane phonon modes [3]. This enables coherent optical driving and the observation of optical Rabi oscillations up to elevated temperatures as demonstrated in our most recent work [4].
[1] A. Dietrich et al., Physical Review B, Vol. 98 (2018)
[2] A. Dietrich et al., Physical Review B, Vol. 101 (2020)
[3] M. Hoese et al., Science Advances, Vol. 6 (2020)
[4] M. Koch et al., Communications Materials, Vol. 5 (2024)
Keywords: hexagonal Boron Nitride; optical coherence; spectroscopy; crystal defect