利用石墨烯的空间分辨片上皮秒脉冲检测

2015 40th International Conference on Infrared, Millimeter, and Terahertz waves (IRMMW-THz) Pub Date : 2015-11-12 DOI:10.1109/IRMMW-THZ.2015.7327831

N. Hunter, A. Mayorov, C. Wood, C. Russell, M. Rosamond, L. Li, E. Linfield, A. Davies, J. Cunningham

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引用次数: 0

摘要

我们提出了一种片上时域太赫兹(TD-THz)系统，该系统在低温生长的砷化镓(LT-GaAs)中产生皮秒脉冲，并在石墨烯中检测。沿着50 μm长的石墨烯光导(PC)探测器在不同位置进行光学采样时，发现检测到的脉冲在振幅、半最大全宽度(FWHM)和直流偏置方面都有变化。结果表明，在基于石墨烯的片上PC探测器中，检测位置和开关设计的重要性。

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Spatially resolved on-chip picosecond pulse detection using graphene

We present an on-chip time domain terahertz (TD-THz) system in which picosecond pulses are generated in low-temperature-grown gallium arsenide (LT-GaAs) and detected in graphene. The detected pulses were found to vary in amplitude, full width at half maximum (FWHM), and DC offset when sampled optically at different locations along a 50-μm-long graphene photoconductive (PC) detector. The results demonstrate the importance of detection location and switch design in graphene-based on-chip PC detectors.

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2015 40th International Conference on Infrared, Millimeter, and Terahertz waves (IRMMW-THz)

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