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Chirality Analysis on a Square Chiral Metamaterial

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Abstract:

We have analyzed the chirality of terahertz (THz) wave emission from a square chiral metamaterial. The sample was manufactured with a periodic structure formed by a square pattern of chiral with different depth on a silver film. We have yield the specific polarization rotation in the THz region when the THz wave is emitted from a square chiral metamaterial. The THz emissions from these chiral metamaterials were elliptic polarization. A square chiral metamaterial was shown circular dichroism and optical activity properties at different frequencies. The ellipticity and rotation angle will reach a maximum value at a frequency of 1.2 THz and 0.6 THz, respectively. The results were indicated the possibility to controlled the polarization with chiral metamaterial structures.

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Periodical:

Materials Science Forum (Volume 901)

Pages:

65-68

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.901.65

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Online since:

July 2017

Authors:

Juliasih Partini*, Kamsul Abraha, Arief Hermanto

Keywords:

Chirality, Metamaterial, Terahertz

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© 2017 Trans Tech Publications Ltd. All Rights Reserved

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