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arXiv · 0708.1638

Electrically controlled Bragg resonances of an ambichiral electro-optic structure: oblique incidence

Mukul Dixit·Akhlesh Lakhtakia
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Abstract

The Pockels effect can increase the effective birefringence of ambichiral, electro--optic rejection filters made of materials with a $\bar{4}2m$ point group symmetry, when a dc electric field is applied parallel to the axis of nonhomogeneity. The reflectances and the transmittances of such an ambichiral structure for obliquely incident plane waves is solvable through a boundary-value problem that is formulated using the frequency-domain Maxwell equations, the constitutive equations that contain the Pockels effect, and standard algebraic techniques for handling 4x4 matrix ordinary differential equations. The Bragg resonance peaks, for different circular-polarized-incidence conditions, blueshift as the angle of incidence increases. These blueshifts are unaffected by the sign of the dc electric field.

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Mukul Dixit, Akhlesh Lakhtakia. 2007-08-13. Electrically controlled Bragg resonances of an ambichiral electro-optic structure: oblique incidence. https://doi.org/10.1117/12.726939

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