Inside Front Cover: Numerical Investigation of a Coupled Micropillar ‐ Waveguide System for Integrated Quantum Photonic Circuits (Adv. Quantum Technol. 12/2024)

This cover image is the 3D rendering of a quantum photonic device concept consisting of a whispering gallery mode microlaser coupled to a ridge waveguide. Such a device could potentially be used to resonantly excite a single‐photon emitter that is subsequently integrated into a ridge waveguide. This allows for on‐chip and on‐demand generation of single photons in the context of integrated quantum photonic circuits. In article number 2400195, Stephan Reitzenstein and co‐workers use finite element simulations to investigate the resonance quality of the cavity and its coupling efficiency.