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Theory of electrically controlled exhibition of circular Bragg phenomenon by an obliquely excited structurally chiral material – Part 2: Arbitrary dc electric field |
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| Authors: | Akhlesh Lakhtakia Juan Adrian Reyes |
| Affiliation: | aComputational & Theoretical Materials Sciences Group (CATMAS), Department of Engineering Science & Mechanics, Pennsylvania State University, University Park, PA 16802-6812, USA;bFísica Química, Instituto de Física, Universidad Nacional Autonóma de México, Apartado Postal 20-364, C.P. 01000, México D.F., Mexico |
| Abstract: | Numerical examination of the solution of the boundary-value problem of the reflection and transmission of a plane wave due to a slab of an electro-optic structurally chiral material (SCM) indicates that the exhibition of the circular Bragg phenomenon by the SCM can be controlled not only by the sign and the magnitude of a dc electric field but also by its orientation in relation to axis of helicoidal non-homogeneity of the SCM. Thereby, the possibility of electrical control of circular-polarization filters has been extended. |
| Keywords: | Circular Bragg phenomenon Electro-optics Pockels effect Structural chirality |
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