PT Journal
AU Rönnung, F
   Cherednichenko, S
   Winkler, D
   Gol'tsman, GN
TI A nanoscale YBCO mixer optically coupled with a bow tie antenna
SO Supercond. Sci. Technol.
JI Supercond. Sci. Technol.
PY 1999
BP 853
EP 855
VL 12
IS 11
DI 10.1088/0953-2048/12/11/348
DE YBCO HTS HEB mixers
AB The bolometric response of YBa[sub:2]Cu[sub:3]O[sub:7-δ](YBCO) hot-electron bolometers (HEBs) to near-infrared radiation was studied. Devices were fabricated from a 50 nm thick film and had in-plane areas of 10 × 10 µm2, 2 × 0.2 µm2, 1 × 0.2µm2 and 0.5 × 0.2 µm2. 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