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arXiv · 1908.06249

Third method for generation of spectral holes in chiral sculptured thin films

Fei Wang·Akhlesh Lakhtakia
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Abstract

The introduction of either a central layer defect or a central twist defect in a periodic structurally chiral material generates circular-polarization-sensitive spectral holes in the remittance spectrums for normally incident plane waves. We propose and theoretically establish here the third method to generate such spectral holes using two-section chiral sculptured thin films (STFs). Both sections of the proposed device have the same periodicity and handedness, but their dielectric properties are different and related in a specific way. The concept of pseudoisotropy is highly relevant for the production of the proposed device.

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Fei Wang, Akhlesh Lakhtakia. 2019-08-17. Third method for generation of spectral holes in chiral sculptured thin films. https://doi.org/10.1016/j.optcom.2005.01.055

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