Single-shot waveform detection of air-plasma based THz sources

We present the first ultra-broadband single-shot detection capable of capturing THz waveform generated through a two-color air-plasma THz source by using a spatially resolved detection scheme. Single-shot THz detection up to 20 THz is realized. Live acquisition of ultra-broadband THz waveform is possible, and the detection time window can be tuned by varying the angle between the THz and optical probe beam.