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Q: Fachverband Quantenoptik und Photonik
Q 13: Posters: Quantum Optics and Photonics I
Q 13.39: Poster
Montag, 9. März 2020, 16:30–18:30, Empore Lichthof
Investigating Electron-Phonon Coupling of Defect Centers in hBN — •Michael K. Koch1, Andreas Dietrich1, Michael Hoese1, Igor Aharonovich3, Marcus W. Doherty2, and Alexander Kubanek1,4 — 1Insitute for Quantum Optics, Ulm University, D-89081 Ulm, Germany — 2Laser Physics Centre, Australian National University, ACT 2601, Australia — 3Faculty of Science, University of Technology Sydney, Ultimo, NSW 2007, Australia — 4IQst, Ulm University, D-89081 Ulm, Germany
Single photon sources are key components for novel hybrid quantum systems, which will allow the implementation of quantum technologies like quantum repeaters or other quantum network architectures. Quantum emitters in hexagonal Boron Nitride (hBN) revealed promising attributes such as a homogeneous linewidth in agreement with the Fourier-Transform limit up to room temperature (RT) [1,2]. However, the full level structure including detailed characteristics of the phononic sideband lack full understanding. Here, we present our recent results leading to a more complete picture of single quantum emitters in hBN. We focus on the persistence of Fourier limited linewidths up to 300K. To examine the emitter level structure of the defect centers, we mainly use resonant (PLE) and off-resonant (PL) photoluminescence spectroscopy. Understanding the underlying physics for the persistence of Fourier limited lines up to room temperature paves the way for the development of novel hybrid quantum systems.
[1] A. Dietrich et al., Physical Review B 98, 081414(R) (2018)
[2] A. Dietrich et al., arXiv:1903.02931 (2019)