Tunable terahertz switching based on single-layer chiral metamaterial

Feng Wang; Quanchao Shi; Tingting Lv; Guangyu Nie; Zhengping Wang; Jinhui Shi

doi:10.1117/12.2070608

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13 November 2014 Tunable terahertz switching based on single-layer chiral metamaterial

Feng Wang, Quanchao Shi, Tingting Lv, Guangyu Nie, Zhengping Wang, Jinhui Shi

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Proceedings Volume 9278, Plasmonics; 927815 (2014) https://doi.org/10.1117/12.2070608
Event: SPIE/COS Photonics Asia, 2014, Beijing, China

Abstract

We present an optically controlled terahertz (THz) switch to tune the state of polarization based on single-layer chiral metamaterial. The chiral metamaterial consists of an array of perforated S-shaped slits with incorporated photoactive silicon, which allows us to control dynamically cross-polarization transmission. The switch state can be efficiently controlled by external optical stimuli. The realization of cross-polarization THz switch in a single-layer metamaterial has simple structure design and easy fabrication and therefore the S-shaped metamaterial will be a promising candidate for polarization control devices.

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Feng Wang, Quanchao Shi, Tingting Lv, Guangyu Nie, Zhengping Wang, and Jinhui Shi "Tunable terahertz switching based on single-layer chiral metamaterial", Proc. SPIE 9278, Plasmonics, 927815 (13 November 2014); https://doi.org/10.1117/12.2070608

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