%0 Journal Article
%T Ultrafast photoresponse of a structured YBa[sub:2]Cu[sub:3]O[sub:7-δ] thin film to ultrashort FIR laser pulses
%A Nebosis, R. S.
%A Heusinger, M. A.
%A Schatz, W.
%A Renk, K. F.
%A Gol’tsman, G. N.
%A Karasik, B. S.
%A Semenov, A. D.
%A Gershenzon, E. M.
%J IEEE Trans. Appl. Supercond.
%D 1993
%V 3
%N 1
%F Nebosis_etal1993
%O exported from refbase (https://db.rplab.ru/refbase/show.php?record=1658), last updated on Thu, 27 May 2021 12:56:14 -0500
%X The authors have investigated the photoinduced voltage response of a current-carrying structured YBa[sub:2]Cu[sub:3]O[sub:7-δ] thin film to ultrashort far-infrared (FIR) laser pulses in the frequency range from 0.7 THz to 7 THz. The detector has shown an almost constant sensitivity of 1 mV/W and a noise equivalent power of less than 5*10/sup -7/ W/ square root Hz. The temperature dependence of the decay time of the detector signal was studied for temperatures around the transition temperature of the film ( approximately 80 K). For a detector temperature where dR/dT had its maximum, the authors observed bolometric signals with decay times of about 2 ns, and for lower temperatures they observed nonbolometric signals with decay times of approximately 120 ps; the duration of the nonbolometric signals was limited by the time resolution of the electronic registration equipment.
%K YBCO HTS detectors
%R 10.1109/77.233930
%U https://doi.org/10.1109/77.233930
%P 2160-2162