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Spectral responses of gyrotropic chiral sculptured thin films to obliquely incident plane waves

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Gyrotropic chiral sculptured thin films (STFs) exhibit optical activity due to their structural chirality, local anisotropy, and magneto-optic gyrotropy. We adapted two algorithms for nongyrotopic chiral STFs to investigate the circular-polarization-sensitivity of gyrotropic chiral STFs to incident plane waves. The impacts of gyrotropy and oblique angles of incidence on the reflectances and the transmittances were examined, and several conclusions drawn. In particular, we found that the incorporation of gyrotropy results in a blueshift of the Bragg regime.

Document Type: Research Article


Affiliations: 1: CATMAS — Computational Theoretical Materials Sciences Group, Department of Engineering Science and Mechanics, Pennsylvania State University, University Park, PA 16802–6812, USA 2: Department of Physics and Technology, Edinboro University of Pennsylvania, Edinboro, PA 16444, USA

Publication date: 2004-11-01

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