Atomic spatial resolution spectroscopy in the THz spectral range

为了确认STM光是否在太赫兹光谱范围内可探测，进行了实验研究。在太赫兹光谱范围内成功地检测到Sb2Te3样品-W尖端间隙的光发射。这一结果表明，在太赫兹光谱范围内进行原子空间分辨率的光谱研究确实是可能的，因为在STM中激发STM光发射的隧道电子束被很好地聚焦到原子水平。

In order to confirm whether STM light is detectable in the THz spectral range, experimental investigations have been carried out. Light emission from the Sb2Te3 sample -W tip gap of a STM was successfully detected in the THz spectral range. This result shows that spectroscopic investigations with atomic spatial resolution in the THz spectral range are indeed possible, because the tunneling electron beam in STM, which excites the STM light emission, is well focused up to the atomic level.