Flexible bi-layer terahertz chiral metamaterials

Amornthep Sonsilphong; Philipp Gutruf; Withawat Withayachumnankul; Derek Abbott; Madhu Bhaskaran; Sharath Sriram; Nantakan Wongkasem

doi:10.1088/2040-8978/17/8/085101

Flexible bi-layer terahertz chiral metamaterials

Amornthep Sonsilphong, Philipp Gutruf, Withawat Withayachumnankul, Derek Abbott, Madhu Bhaskaran, Sharath Sriram, Nantakan Wongkasem

Research output: Contribution to journal › Article › peer-review

9 Scopus citations

Abstract

Thin and flexible bi-layer terahertz chiral metamaterials are experimentally demonstrated in both handednesses at terahertz frequencies. The structures are made of conjugated C8 metallic resonators fabricated on a flexible polyimide substrate. These structures exhibit chirality and can distinguish circularly polarized waves at the frequency range from 0.5 to 0.9 THz, equivalent to 57.15% bandwidth. The structures can be used as circular polarizers for terahertz waves.

Original language	English (US)
Article number	085101
Journal	Journal of Optics (United Kingdom)
Volume	17
Issue number	8
DOIs	https://doi.org/10.1088/2040-8978/17/8/085101
State	Published - Aug 1 2015
Externally published	Yes

Keywords

chiral media
flexible
metamaterials
negative refractive index

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Atomic and Molecular Physics, and Optics

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AU - Sonsilphong, Amornthep

AU - Gutruf, Philipp

AU - Withayachumnankul, Withawat

AU - Abbott, Derek

AU - Bhaskaran, Madhu

AU - Sriram, Sharath

AU - Wongkasem, Nantakan

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AB - Thin and flexible bi-layer terahertz chiral metamaterials are experimentally demonstrated in both handednesses at terahertz frequencies. The structures are made of conjugated C8 metallic resonators fabricated on a flexible polyimide substrate. These structures exhibit chirality and can distinguish circularly polarized waves at the frequency range from 0.5 to 0.9 THz, equivalent to 57.15% bandwidth. The structures can be used as circular polarizers for terahertz waves.

KW - chiral media

KW - flexible

KW - metamaterials

KW - negative refractive index

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