TY - CONF AU - Semenov, A. AU - Hübers, H-W AU - Engel, A. AU - Gol’tsman, G. ED - Wolf, J. ED - Farhoomand, J. ED - McCreight, C. R. PY - 2002 DA - 2002// TI - Superconducting quantum detector for far infrared astronomy T2 - Far-IR, Sub-mm & MM Detector Technology Workshop BT - Far-IR, Sub-mm & MM Detector Technology Workshop T3 - NASA CP SP - 3 EP - 49 PB - NASA KW - SQD AB - We present the concept of the superconducting quantum detector for astronomy. Response to a single absorbed photon appears due to successive formation of a normal spot and phase-slip-centres in a narrow strip carrying sub-critical supercurrent. The detector simultaneously has a moderate energy resolution and a variable cut-off wavelength depending on both the material used and operation conditions. We simulated performance of the background-limited direct detector having the 100-micrometer cut-off wavelength. Low dark count rate will allow to realise 10-21 W Hz-1/2 noise equivalent power at 4 K background radiation. The detection mechanism provides a moderate 1/20 energy resolution at 50-micrometer wavelength. UR - https://elib.dlr.de/18596/ N1 - Volume: 211408 ID - Semenov_etal2002 ER -