Mechanically tuned cholesteric elastomer waveguide slab

Abstract In this research, a planar waveguide whose core is cholesteric liquid crystalline elastomer helical axis perpendicular to its boundaries, studied. The electrodynamics equations are established, together with the constitutive equations. mechanical stress tuned through elastic deformations in parallel direction along helix axis, order control propagation parameters. resulting system solved numerically by assuming guide be surrounded either air or vacuum. parameter and ratio between magnetic electrical modes obtained as function of frequency, which provides band structure aforementioned modes. amplitudes profiles electromagnetic fields Poynting vector distributions also sought position. Finally, mixing transverse electric generate new eigenmodes their conditions for within waveguide,