Contributions > Ben Soltane Isam

Reflectionless states are zeros of the response in reflection of a system to an excitation. Their manipulation offers a platform to study and achieve perfect absorption within a cavity or perfect transimission through a waveguide. A reflectionless state can be inverse designed by controlling the disorder within a perturbed waveguide. Here we show how this design can be achieved by leveraging the expression of the scattering matrix T of a waveguide described by the coupled dipole model, to obtain a simple calculation of its derivative with respect to a perturbation in the waveguide.