Terahertz Sensors

ATP_Bildkollage_THzIBPT KIT

In accelerators such as FLUTE, the electron packages (bunches) are so short that current beam diagnostics is insufficient to temporally resolve these bunches or the emitted photon pulses. A short pulse in time corresponds to a wide spectrum in the terahertz (THz) range. This is why ultra-fast detector systems, such as the world’s fastest high-temperature superconducting detectors developed at KIT, can determine the pulse length indirectly via the radiation spectrum. Multi-element, high-sensitivity sensors, line- and focal-plane detector arrays provide ultra-fast single-shot spectrometers for extremely wide-band THz pulses simultaneously operating at high repetition rates.