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Reflection, transmission and circular dichroism in axially excited slab of a copper thin film helicoidal bianisotropic medium

✍ Scribed by Ferydon Babaei; Hadi Savaloni

Publisher: Elsevier Science
Year: 2007
Tongue: English
Weight: 494 KB
Volume: 278
Category: Article
ISSN: 0030-4018
DOI: 10.1016/j.optcom.2007.06.029

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✦ Synopsis

The reflectance, transmittance and circular dichrosim in a chiral sculptured copper thin film slab of 1000-1600 nm thickness in near infra-red and visible regions based on the relative permittivity of copper in the bulk state and volumetric fraction of copper inclusion of 0.2 are obtained. At higher volumetric fraction of metallic inclusions the reflection (due to low circular Bragg phenomenon) and transmission coefficients (due to increased absorption) are too small, while for thicker slabs numerical instabilities (overflow/underflow) occur in the computation. Therefore it is recommended that the chiral sculptured thin film slab to be considered as a half space.

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