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THz photoconductive antenna array based near field imaging

机译:太赫兹光电导天线阵列的近场成像

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Summary form only given. In this work, a 2 × 2 photoconductive antenna (PCA) array is used in a THz near field imaging setup as THz emitters while the sample is placed close to the antenna array (the antenna-sample distance is about 10 μm). A microlens array is used to couple and focus femto-second laser pulse onto each antenna. The response of a sample of gold pattern on quartz is measured. A FDTD model combined with HFSS simulation is used to predict the time domain current and near field scanning result. Good agreement between simulation and experiment is obtained.
机译:仅提供摘要表格。在这项工作中,将2×2光电导天线(PCA)阵列用于THz近场成像设置中作为THz发射器,同时将样品放置在靠近天线阵列的位置(天线样品距离约为10μm)。微透镜阵列用于将飞秒激光脉冲耦合并聚焦到每个天线上。测量了石英上的金样样品的响应。 FDTD模型与HFSS仿真相结合,用于预测时域电流和近场扫描结果。仿真与实验结果吻合良好。

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