PT Journal AU Gerecht, E Musante, CF Zhuang, Y Yngvesson, KS Gol’tsman, GN Voronov, BM Gershenzon, EM TI NbN hot electron bolometric mixerss—a new technology for low-noise THz receivers SO IEEE Trans. Appl. Supercond. JI IEEE Trans. Appl. Supercond. PY 1999 BP 2519 EP 2527 VL 47 IS 12 DI 10.1109/22.809001 DE NbN HEB mixers AB New advances in hot electron bolometer (HEB) mixers have recently resulted in record-low receiver noise temperatures at terahertz frequencies. We have developed quasi-optically coupled NbN HEB mixers and measured noise temperatures up to 2.24 THz, as described in this paper. We project the anticipated future performance of such receivers to have even lower noise temperature and local-oscillator power requirement as well as wider gain and noise bandwidths. We introduce a proposal for integrated focal plane arrays of HEB mixers that will further increase the detection speed of terahertz systems. ER