激光生成蛾眼结构在周期太赫兹波发生器中的应用

2019 44th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz) Pub Date : 2019-09-01 DOI:10.1109/IRMMW-THz.2019.8874269

Xi Yu, S. Ono, J. Bae

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引用次数: 1

摘要

为了提高周期太赫兹波发生器产生太赫兹波的效率，利用飞秒激光在天线基板背面制备了飞蛾眼结构(ht - gaas)。AR结构天线在0.342太赫兹(计算四频)、0.283太赫兹、0.226太赫兹(实验四频)下的输出分别提高了2.5 ~ 4.4倍，分别提高了3倍、2.5倍和4.4倍。

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Application of laser generated moth-eye structure for a periodic terahertz-wave generator

To improve the generation efficiency of terahertz wave from periodic terahertz-wave generator, femtosecond laser was employed to fabricated moth-eye structure on the reverse of the antenna substrate (LT-GaAs). The AR structured antennas had a 2.5–4.4 times improvement of the output at the frequency of 0.342 THz (calculated fout), 0.283 THz, 0.226 THz (experimental fout of generator without and with moth-eye structure), the improvement are 3 times, 2.5 times, and 4.4 times, respectively.

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2019 44th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz)

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