2022/09/30 by Martin W. McCall, McCall, Martin W., Stefanos Fr. Koufidis +1
Materials Science · Physics and Astronomy · #Metamaterials and Metasurfaces Applications #Orbital Angular Momentum in Optics #Optical and Acousto-Optic Technologies
paper · pdf · doi:10.48550/arxiv.2209.15554
The axial propagation of circularly polarized light in an optically active structurally chiral medium is exactly solved via full electromagnetic analysis. Some symmetries of the system's characteristic matrix reveal new insights, which are confirmed by coupled wave theory. For extreme values of chirality, now accessible via metamaterials, a reverse circular Bragg resonance arises in the negative refraction regime where handedness reversal of counterpart modes occurs. A condition is identified under which optical activity offsets structural chirality, rendering the medium simply birefringent.