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arXiv · 1711.05463

Polarization-state-dependent attenuation and amplification in a columnar thin film

Tom G. Mackay·Akhlesh Lakhtakia
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Abstract

We numerically investigated the plane-wave reflection-transmission characteristics of a columnar thin film (CTF) whose columns are made from a dissipative material but whose void regions are filled with an active material. By computing the reflectances and transmittances, we found that the CTF can simultaneously amplify $s$-polarized incident light and attenuate $p$-polarized incident light, or vice versa. This polarization-state-dependent attenuation and amplification phenomenon depends upon the angle of incidence and the thickness of the CTF.

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Tom G. Mackay, Akhlesh Lakhtakia. 2017-11-15. Polarization-state-dependent attenuation and amplification in a columnar thin film. https://doi.org/10.1088/2040-8986%2Faa9127

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