标准硅CCD和COMS传感器上亚2 THz光子的异常可视化
Anomalous visualization of sub-2 THz photons on standard silicon CCD and COMS sensors
摘要：
我们的实验表明，间接的光致电子跃迁可以导致太赫兹检测标准的CCD和CMOS传感器，介绍了这一成熟的技术概念的太赫兹范围。与其光学对应物不同，我们发现太赫兹灵敏度是非线性的。我们成像1-13太赫兹辐射的光子能量小于2%的公认的带隙能量阈值。前所未有的小间距和大量像素使我们能够可视化太赫兹辐射的复杂传播，因为它聚焦到物理衍射极限。在Single Shot中可检测到宽带脉冲。这开辟了一个全新的领域，实时太赫兹成像的帧速率的传感器。
英文摘要：
We experimentally show that indirect light-induced electron transitions could lead to THz detection on standard CCD and CMOS sensors, introducing this well-established technological concept to the THz range. Unlike its optical counterpart, we found that the THz sensitivity is nonlinear. We imaged 1-13 THz radiation with photon energy less than 2% of the well-established band gap energy threshold. The unprecedented small pitch and large number of pixels uniquely allowed us to visualize the complex propagation of THz radiation, as it focuses down to the physical diffraction limit. Broadband pulses were detectable at a single shot. This opens a whole new field of real time THz imaging at the frame rate of the sensor.
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