Topological nanophotonics for photoluminescence control

摘要: Rare-earth doped nanocrystals are emerging light sources used for many applications in nanotechnology enabled by human ability to control their various optical properties with chemistry and material science. However, one important problem -- polarisation of photoluminescence remains largely out methods. Control over can be gained via coupling emitters resonant nanostructures such as antennas metasurfaces. the resulting polarization is typically sensitive position disorder emitters, which difficult mitigate. Recently, new classes disorder-immune systems have been explored within framework topological photonics. Here we explore disorder-robust arrays Mie-resonant nanoparticles nanocrystals. We demonstrate polarized emission from rare-earth-doped governed photonic edge states supported zigzag dielectric resonators. verify origin polarised comparing coupled topologically trivial nontrivial nanoresonators.