Abstract
The propagating characteristics of the electromagnetic waves through annularcoupled-resonator optical waveguides (CROWs) based on two-dimensional square-latticephotonic crystals are studied by the finite-difference time-domain method. Comparing withthe traditional line-typed CROWs, the annular CROW studied in this paperhave more minibands within the bandgap. With the increasing of the distancebetween two adjacent annular cavities, the values of the corresponding groupvelocities and the field distributions of the guiding modes are numerically calculated.When the annular cavities are interlaced in the direction perpendicular to thewaveguide, the group velocities can be further reduced and a maximum value of0.000 37c can be obtained.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
