Photonic atoms and molecules

We will review recent advances in the investigation of optical modes in single three‐dimensional whispering‐gallery microcavities and coupled microresonators. Due to the small size and high quality factor these resonators have the potential for development of single‐photon emitters, nanojets, sensors and low‐threshold lasers and for fundamental studies of optical matter interactions. Recent advances in the investigation of optical modes in single three‐dimensional whispering‐gallery microcavities and coupled microresonators are reviewed. Due to the small size and high quality factor these resonators have the potential for development of single‐photon emitters, nanojets, sensors and low‐threshold lasers and for fundamental studies of optical matter interactions