YBCO Terahertz Detectors at Room Temperature and at 77K.

The diversity of THz detectors is as wide as the range of applications for THz waves. Requirements for the detectors vary and so do the detectors. Extremely high sensitivities (NEP200V/W) for frequencies from 100GHz to 2THz and a drop of NEP to about 70 pW/Hz0.5. As the responsivity grows, the nano bolometers become more sensitive to the external electrical disturbances, as well as to the internal 1/f noise. We will discuss the noise properties of the YBCO nano bolometers, their optical characterization, as well as some of their application for the gas spectroscopy and prospects of the array integration