A nanoscale YBCO mixer optically coupled with a bow tie antenna
Fredrik Rönnung; Sergey Cherednichenko; Dag Winkler; Gregory N Gol'tsman
Журнал:
Superconductor Science and Technology
Дата:
1999-11-01
Аннотация:
The bolometric response of YBa<sub>2</sub>Cu<sub>3</sub>O<sub>7-</sub>(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 µm<sup>2</sup>, 2 × 0.2 µm<sup>2</sup>, 1 × 0.2µm<sup>2</sup> and 0.5 × 0.2 µm<sup>2</sup>. 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.
83.72Кб