A polarization-independent terahertz modulator based on metamaterials with symmetric structure

Jingsuo He; Lei Jiao; Hailin Cui; Cunlin Zhang

doi:10.1117/12.2074349

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11 November 2014 A polarization-independent terahertz modulator based on metamaterials with symmetric structure

Jingsuo He, Lei Jiao, Hailin Cui, Cunlin Zhang

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Proceedings Volume 9275, Infrared, Millimeter-Wave, and Terahertz Technologies III; 92751O (2014) https://doi.org/10.1117/12.2074349
Event: SPIE/COS Photonics Asia, 2014, Beijing, China

Abstract

This paper proposed a polarization independent terahertz modulator based on gold-Si metamaterials with symmetric structure, and aimed to modulate terahertz wave in communication systems. The transmission properties have been investigated in terahertz regime. We find that the resonance frequency of this device can be actively controlled by pump laser. The numerical simulations and experiments with OPTP system show that this device acts as a modulator with intensity modulation depth of 70% by gold structure.

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Jingsuo He, Lei Jiao, Hailin Cui, and Cunlin Zhang "A polarization-independent terahertz modulator based on metamaterials with symmetric structure", Proc. SPIE 9275, Infrared, Millimeter-Wave, and Terahertz Technologies III, 92751O (11 November 2014); https://doi.org/10.1117/12.2074349

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