@InProceedings{Seliverstov_etal2016, author="Seliverstov, S. V. and Rusova, A. A. and Kaurova, N. S. and Voronov, B. M. and Goltsman, G. N.", title="Attojoule energy resolution of direct detector based on hot electron bolometer", booktitle="J. Phys.: Conf. Ser.", year="2016", publisher="IOP Publishing", volume="741", pages="012165 (1 to 5)", optkeywords="NbN HEB detector", abstract="We characterize superconducting antenna-coupled NbN hot-electron bolometer (HEB) for direct detection of THz radiation operating at a temperature of 9.0 K. At signal frequency of 2.5 THz, the measured value of the optical noise equivalent power is 2.0{\texttimes}10-13 W-Hz-0.5. The estimated value of the energy resolution is about 1.5 aJ. This value was confirmed in the experiment with pulsed 1.55-$\mu$m laser employed as a radiation source. The directly measured detector energy resolution is 2 aJ. The obtained risetime of pulses from the detector is 130 ps. This value was determined by the properties of the RF line. These characteristics make our detector a device-of-choice for a number of practical applications associated with detection of short THz pulses.", optnote="exported from refbase (https://db.rplab.ru/refbase/show.php?record=1337), last updated on Wed, 12 May 2021 00:33:51 -0500", doi="10.1088/1742-6596/741/1/012165", opturl="https://doi.org/10.1088/1742-6596/741/1/012165" }