Hosting exceptional points in 1D photonic bandgap waveguide for mode engineering

Date Issued
2021-01-01
Author(s)
Dey, Sibnath
Ghosh, Somnath
Abstract
We report a planar 1D photonic bandgap waveguide exhibiting four second-order exceptional points (EP2s). The interactions between the selective pairs of supported quasi-guided TE modes are modulated by spatial distribution of transverse in-homogeneous gain-loss profile.