Abstract Ultrafast and sensitive (noise equivalent power <1 nW Hz−1/2) light-detection in the terahertz (THz) frequency range (0.1–10 THz) and at room-temperature is key for applications such as time-resolved THz spectroscopy of gases, complex molecules and cold samples, imaging, metrology, ultra-high-speed data communications, coherent control of quantum systems, quantum optics and for capturing snapshots of ultrafast dynamics, in materials and devices, at the nanoscale. Here, we report room-temperature THz nano-receivers exploiting antenna-coupled graphene field effect transistors integrated with lithographically-patterned high-bandwidth (∼100 GHz) chips, operating with a combination of high speed (hundreds ps response time) and high sensitivity (noise equivalent power ≤120 pW Hz−1/2) at 3.4 THz. Remarkably, this is achieved with various antenna and transistor architectures (single-gate, dual-gate), whose operation frequency can be extended over the whole 0.1–10 THz range, thus paving the way for the design of ultrafast graphene arrays in the far infrared, opening concrete perspective for targeting the aforementioned applications.

中文翻译：

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在太赫兹频率下具有亚纳秒响应时间的热电石墨烯光电探测器

摘要 太赫兹 (THz) 频率范围 (0.1–10 THz) 和室温下的超快和灵敏（噪声等效功率 <1 nW Hz−1/2）光检测是时间分辨太赫兹光谱等应用的关键气体、复杂分子和冷样品、成像、计量学、超高速数据通信、量子系统的相干控制、量子光学以及用于捕捉材料和设备中纳米级超快动力学的快照。在这里，我们报告了室温太赫兹纳米接收器，利用天线耦合石墨烯场效应晶体管与光刻图案化高带宽（~100 GHz）芯片集成，以高速（数百 ps 响应时间）和高灵敏度的组合运行（噪声等效功率 ≤120 pW Hz−1/2）在 3.4 THz。值得注意的是，