Experimental study of perovskite nanocrystals as single photon sources for integrated quantum photonics

• URL: http://arxiv.org/abs/2105.14245v1
• Date: Sat, 29 May 2021 08:12:31 GMT
• Title: Experimental study of perovskite nanocrystals as single photon sources for integrated quantum photonics
• Authors: Stefano Pierini
• Abstract summary: The thesis is devoted to the study of the coupling of single-photon emitters with photonic nanostructures. I present a full characterization of perovskite nanocrystals with improved photo-stability, reduced blinking ad strong antibunching. I show how the near field around ion exchange waveguides can be employed together with near-field polymerization to trap single-photon emitters onto the waveguides.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: This thesis is devoted to the study of the coupling of single-photon emitters with photonic nanostructures by using the properties of the near field of a photonic structure in view of the realization of a compact integrated single-photon source for quantum applications. The first part of my thesis work was consecrated to the optimization of perovskites nanocrystals. Although perovskites nanocrystals are very promising single-photon sources, they still need improvements: in this work, I review the main properties of these emitters and present a full characterization of perovskite nanocrystals with improved photo-stability, reduced blinking ad strong antibunching. In the second part of the thesis, I focus on the coupling of quantum emitters with various photonic structures: namely the tapered optical nanofibers and the ion-exchange waveguides. The fabrication method and the optical properties of the nanofibers are described in detail and the coupling of a single perovskite nanocrystal with a nanofiber is achieved, which constitutes a proof of principle of a hybrid integrated single-photon source. Finally, I show how the near field around ion exchange waveguides can be employed together with near-field polymerization to trap single-photon emitters onto the waveguides.

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