TY  - JOUR
AU  - Gershenzon, E. M.
AU  - Gol'tsman, G. N.
AU  - Semenov, A. D.
AU  - Sergeev, A. V.
PY  - 1990
DA  - 1990//
TI  - Mechanism of picosecond response of granular YBaCuO films to electromagnetic radiation
T2  - Solid State Communications
JO  - Solid State Communications
SP  - 493
EP  - 497
VL  - 76
IS  - 4
KW  - YBCO HTS detectors
AB  - The ultrafast mechanisms of radiation detection in granular YBaCuO films are studied in the wide wavelength range from millimeter to near infrared. With the rise of radiation frequency the Josephson detection at the grain boundary weak links is replaced by electron heating into the grains. This change occurs in the submillimeter wavelength range. Electron-phonon relaxation time τeph is determined by direct measurements and analyses quasistationary electron heating. Temperature dependence of τeph at T ≤ 40 K was found to be τeph ∼ T−1. The results show that detectors with the response time of few picoseconds at nitrogen temperature are attainable.
SN  - 0038-1098
UR  - https://linkinghub.elsevier.com/retrieve/pii/003810989090656V
UR  - https://doi.org/10.1016/0038-1098(90)90656-V
DO  - 10.1016/0038-1098(90)90656-V
N1  - exported from refbase (https://db.rplab.ru/refbase/show.php?record=1685), last updated on Thu, 27 May 2021 19:39:45 -0500
ID  - Gershenzon_etal1990
ER  -