2020/11/18 by Daniel Groll, Thilo Hahn, Paweł Machnikowski +2 · 1 citation
Materials Science · Physics and Astronomy · #Boron and Carbon Nanomaterials Research #Excitation #Graphene research and applications #Phonon #Photoluminescence #Photon #Quantum dot #Spectral line #Superposition principle #Thermal properties of materials #cond-mat.mes-hall #physics.optics
paper · pdf · doi:10.1088/2633-4356/abcbeb
published as Mater. Quantum. Technol. 1, 015004 (2021)
openalex publication_date 2020/11/18 · openalex created_date 2020/11/23 · arxiv created 2021/02/18 · arxiv updated 2021/02/19 · openalex updated_date 2026/08/06
Abstract Color centers in hexagonal boron nitride show stable single photon emission even at room temperature, making these systems a promising candidate for quantum information applications. Besides this remarkable property, also their interaction with longitudinal optical (LO) phonons is quite unique because they lead to dominant phonon sidebands, well separated from the zero phonon line. In this work we utilize this clear spectral separation to theoretically investigate the influence of phonon decay dynamics on time-dependent photoluminescence (PL) signals. Our simulations show, that by using tailored optical excitation schemes it is possible to create a superposition between the two LO modes, leading to a phonon quantum beat that manifests in the time-dependent PL signal.