太赫兹瞬态光电导率与近场探测

2018 43rd International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz) Pub Date : 2018-09-01 DOI:10.1109/IRMMW-THZ.2018.8510369

N. V. van Hoof, Stan E. T. ter Huurne, J. Rivas, A. Halpin

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引用次数: 0

摘要

我们展示了一种新的技术，可以用宽带太赫兹辐射探测光激发结构的亚衍射近场研究。作为概念验证，该系统测量了GaAs薄膜中光激发载流子的亚ps时间动力学，其空间分辨率为60 μm (λ/10, 0.5 THz峰值强度)。

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THz Transient Photoconductivity with Near-Field Detection

We demonstrate a novel technique that enables the sub-diffraction near-field study of photo-excited structures probed with broadband THz radiation. As a proof-of-concept this system measures sub-ps temporal dynamics of photoexcited carriers in a thin film of GaAs with a spatial resolution of 60 μm (λ/10 at 0.5 THz peak intensity).

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来源期刊

2018 43rd International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz)

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