EurekAlert October 9, 2019
Researchers in Germany developed an interface that couples light sources for single photons with nanophotonic networks. They considered quantum emitters which are embedded in nanodiamonds and emit photons when they are stimulated by means of electromagnetic fields. In order to produce the desired interfaces, they aimed to develop optical structures tailored to the wavelength of the quantum emitters. In structuring the crystals, they varied not only the size and the arrangement of the cavities, but also the width of the waveguide on which the cavities were placed. They found photonic crystals which demonstrated a special variation in hole sizes were best suited for the interfaces. The results pave the way for integrating quantum emitters with nanophotonic circuits for applications in quantum technology…read more. Open Access TECHNICAL ARTICLE
Various designs form photonic crystals which concentrate light in a cavity. Credit: J. Olthaus, P. Schrinner et al./Adv. Quantum Technol.