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Conferences > ISUPTW > 2018 > WI > WI19

Ultraviolet light-induced terahertz modulation based on indium oxide thin film

Hongyu Ji, Bo Zhang, Wei Wang, Guocui Wang, Longfeng Lv, and Jingling Shen

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Abstract

An active ultraviolet light-induced terahertz modulation based on indium oxide thin film was investigated in which exhibit a large absorption modulation of ~50% when illuminated by a low intensity UV laser (11 mW/cm2). The interaction between indium oxide and the metamaterial structure was investigated due to the large enhancement of photo carriers in UV-induced in indium oxide film. We can realize the absorption peak shifts of 37 GHz by changing the UV excited light intensity.

© 2018 The Author(s)

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