Abstract:A new radiometric measuring system to be used in the terahertz region, equipped with a pyroelectric detector and a standard synchronous sampling system is being developed at INRIM. A black-body cylindrical cavity, suitable for operating from −50 ∘ C to 80 ∘ C with known thermodynamic temperature and calculable radiant flux, is employed as a polychromatic terahertz source for the calibration of the radiometer. Preliminary tests were performed in order to determine the responsivity and stability of the radiomete… Show more
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