We demonstrate accurately frequency-resolved profile measurement for a two-color air-plasma THz beam. It was achieved by combining THz waveform measurements and the knife-edge technique. The measurements show that while high frequencies feature a hollow donut shape, the low frequency beam is very close to a Gaussian profile.
|Number of pages
|Published - 2021
|46th International Conference on Infrared, Millimeter and Terahertz Waves - Chengdu, China
Duration: 29 Aug 2021 → 3 Sept 2021
|46th International Conference on Infrared, Millimeter and Terahertz Waves
|29/08/2021 → 03/09/2021