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

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