Dynamic control of THz waves through thin-film transistor metamaterials

Fang-Fang Ren; Wei-Zong Xu; Hai Lu; Jiandong Ye; Hark Hoe Tan; Chennupati Jagadish

doi:10.1117/12.2202359

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22 December 2015 Dynamic control of THz waves through thin-film transistor metamaterials

Fang-Fang Ren, Wei-Zong Xu, Hai Lu, Jiandong Ye, Hark Hoe Tan, Chennupati Jagadish

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Proceedings Volume 9668, Micro+Nano Materials, Devices, and Systems; 96680O (2015) https://doi.org/10.1117/12.2202359
Event: SPIE Micro+Nano Materials, Devices, and Applications, 2015, Sydney, New South Wales, Australia

Abstract

We propose a hybrid metamaterial with embedded amorphous oxide thin-film transistor (TFT) arrays, which embraces the advantages of energy saving, low cost and high yields for tunable amplitude modulation in terahertz (THz) regime. The properties of this active metamaterial system are numerically investigated based on full-wave techniques and multipole theory. The calculation results attribute the modulation to a change in the damping rate of an electric dipoletype resonance mode caused by the increased conductivity of the transparent oxide layer. Such a device, expanding the horizon of oxide electronics into metamaterials, opens up many fascinating prospects for producing stable, uniform, and low-cost THz components.

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Fang-Fang Ren, Wei-Zong Xu, Hai Lu, Jiandong Ye, Hark Hoe Tan, and Chennupati Jagadish "Dynamic control of THz waves through thin-film transistor metamaterials", Proc. SPIE 9668, Micro+Nano Materials, Devices, and Systems, 96680O (22 December 2015); https://doi.org/10.1117/12.2202359

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