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Circular dichroism in spline shaped chiral metamaterial at mid-infrared

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Currently, scientists are intrigued by the vast potential of chiral metamaterials. These include a negative index of refraction, optical activity, circular dichroism, and asymmetric transmission. A planar chiral metamaterial supporting… Click to show full abstract

Currently, scientists are intrigued by the vast potential of chiral metamaterials. These include a negative index of refraction, optical activity, circular dichroism, and asymmetric transmission. A planar chiral metamaterial supporting completely different left-hand and right-hand oriented polarized light within a spline shaped chiral metamaterial is proposed. Robust circular dichroism of the spline-shaped planned structure numerically is acquired. The reliance on geometrical parameters of spectral features, precisely spline thickness, and scanning angle is analyzed by a commercial software referred to as CST MICROWAVE STUDIO supported by the finite integration technique. The chirality parameter and, therefore, the surface-field response of the proposed structure are also determined. Because of the increased surface-field reaction and controlled features, the projected structure might have the potential for biosensing enforcements.Currently, scientists are intrigued by the vast potential of chiral metamaterials. These include a negative index of refraction, optical activity, circular dichroism, and asymmetric transmission. A planar chiral metamaterial supporting completely different left-hand and right-hand oriented polarized light within a spline shaped chiral metamaterial is proposed. Robust circular dichroism of the spline-shaped planned structure numerically is acquired. The reliance on geometrical parameters of spectral features, precisely spline thickness, and scanning angle is analyzed by a commercial software referred to as CST MICROWAVE STUDIO supported by the finite integration technique. The chirality parameter and, therefore, the surface-field response of the proposed structure are also determined. Because of the increased surface-field reaction and controlled features, the projected structure might have the potential for biosensing enforcements.

Keywords: spline shaped; structure; chiral metamaterial; circular dichroism

Journal Title: AIP Advances
Year Published: 2019

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