Super-strong photonic localization in symmetric two-segment-connected triangular defect waveguide networks

In this paper we study photonic localizations of symmetric two-segment-connected triangular defect waveguide networks (STSCTDWNs). It is found that very strong photonic localizations can be generated at the nodes connected with defect waveguide(s) of STSCTDWNs in which intensities are 12 orders of magnitude larger than previous reported results. The formulae of the largest intensity of photonic localization (LIPL) are obtained. It may possess potential applications for the designing of all-optical devices based on strong photonic localization in lower frequency regime, e.g., RF or microwave.