Scattering plane waves by a dielectric cylinder with periodically modulated permittivity at oblique incidence

Bulgakov, Evgeny N.; Sadreev, Almas F. Source: PHYSICAL REVIEW A, 97 (6):10.1103/PhysRevA.97.063856 JUN 28 2018

For scattering of electromagnetic waves by a dielectric cylinder with periodically modulated permittivity we focus on the vicinity of the frequency of the wave with regard to the eigenfrequencies of bound states in the continuum. Then response of the cylinder becomes extremely sensitive to the angle of incidence and polarization of the plane wave. The cross section of the scattering of electromagnetic waves with mixed polarization undergoes crucial change from the Bragg shape to the Fano shape by rotation of the polarization that paves a way to tuning of Fano resonances by an external source.