Optimization of single photon sourCe by using the pHOtonic exCeptiOnal pOint of poLymeric nAnosTructures – CHOCOLAT

The CHOCOLAT aims to investigate theoretically and experimentally optical properties of a single quantum emitter (SQE) determistically incorporated at exceptional points of one and two-dimensional (1D and 2D) photonic nanostructures. A first challenge, tackled in WP1, is to design and calculate the optical properties (emission spectrum, emission count, lifetime, fluorescent polarization, and emission directivity) of a SQE coupled to a 1D and 2D polymeric nanostructures at its exceptional point. At room temperature, high quality SQE (narrow spectrum, stable and bright) will be achieved with single quantum dot, and with hBn nano-flake (WP2). In WP3, we will demonstrate the coupling of a SQE to 1D and 2D polymeric photonic nanostructures by use of an efficient method, called low-one photon absorption (LOPA) direct laser writing, to elaborate single photons properties. The project CHOCOLAT fits into the framework of the research of the Theme E.06 since it addresses the un-exploited and un-usual optical properties of nanophotonic structures for optimization of quantum light source.