Third order modal exceptional degeneracy in waveguides with glide-time symmetry
Third order modal exceptional degeneracy in waveguides with glide-time symmetry
The dispersion of a three-way waveguide is engineered to exhibit exceptional modal characteristics. Two coupled waveguides with parity-time ($\mathcal{P}\mathcal{T}$) symmetry have been previously demonstrated to exhibit second order exceptional points of degeneracy (EPDs). In this work, we introduce and investigate a particular class of EPDs, applicable from radio frequency to …