PT Unknown
AU Cherednichenko, S
   Ronnung, F
   Gol'tsman, G
   Gershenzon, E
   Winkler, D
TI YBa[sub:2]Cu[sub:3]O[sub:7-δ] hot-electron bolometer with submicron dimensions
SE Proc. 10[super:th] Int. Symp. Space Terahertz Technol.
PY 1999
BP 181
EP 189
DE YBCO HTS HEB mixers
AB Photoresponse of YBa[sub:2]Cu[sub:3]O[sub:7-δ] hot-electron bolometers to modulated near-infrared radiation was studied at a modulation .frequenc y var y ing from 0.2 MHz to 2 GHz. Bolometers were _fabricated from a 50 12 M thick film and had in-plane areas of 10x10 , um 2 . 2x0.2 s um', 1x0.2 p.m', and 0.5x0.2 jim. We found that nonequilibrium phonons cool down more effectively for the bolometers with smaller area. For the smallest bolometer the bolometric component in the response is 10 dB less than for the largest one.
ER