Transmission-dispersion characteristics of waveguide-coupled photonic crystal two-mode nanocavity embedding three tunnel-coupled quantum dots

Using three tunnel-coupled quantum dots embedded in waveguide-coupled photonic crystal two-mode nanocavity, we investigate optical transmission-dispersion characteristics of the combined system. It is shown that multiple electromagnetically-induced-transparency (EIT) transmission peaks and strong normal/anomalous dispersion inside the EIT-like windows can be observed in the spectrum. -- Highlights: → High optical transmission-dispersion characteristics of a hybrid system is studied. → Multiple EIT-like effect and anomalous dispersion can be created in a low-Q regime. → Transmission spectra and phase shift can be controlled by engineering QD properties. → This work offers a promising way to realize integrated photonic devices on a chip.