%0 Conference Proceedings
%T AC-biased superconducting NbN hot-electron bolometer for frequency-domain multiplexing
%A Seliverstov, Sergey V.
%A Rusova, Anastasia A.
%A Kaurova, Natalya S.
%A Voronov, Boris M.
%A Goltsman, Gregory N.
%S Proc. 28[super:th] Int. Symp. Space Terahertz Technol.
%D 2017
%F Seliverstov_etal2017
%O exported from refbase (https://db.rplab.ru/refbase/show.php?record=1174), last updated on Sat, 01 May 2021 00:41:55 -0500
%X We present the results of characterization of fast and sensitive superconducting antenna-coupled THz direct detector based on NbN hot-electron bolometer (HEB) with AC-bias. We discuss the possibility of implementation of the AC-bias for design the readout system from the multi-element arrays of HEBs using standard technique of frequency-domain multiplexing. We demonstrate experimentally that this approach does not lead to significant deterioration of the HEB sensitivity compared with the value obtained for the same detector with DC- bias. Results of a numerical calculations of the HEB responsivity at AC-bias are in a good agreement with the experiment.
%K NbN HEB mixer
%P 120-122