TY - JOUR AU - Kawamura, J. AU - Blundell, R. AU - Tong, C. -yu E. AU - Gol’tsman, G. AU - Gershenzon, E. AU - Voronov, B. AU - Cherednichenko, S. PY - 1997 DA - 1997// TI - Low noise NbN lattice-cooled superconducting hot-electron bolometric mixers at submillimeter wavelengths T2 - Appl. Phys. Lett. JO - Appl. Phys. Lett. SP - 1619 EP - 1621 VL - 70 IS - 12 KW - NbN HEB mixers AB - Lattice-cooled superconducting hot-electron bolometric mixers are used in a submillimeter-wave waveguide heterodyne receiver. The mixer elements are niobium nitride film with 3.5 nm thickness and ∼10 μm2 area. The local oscillator power for optimal performance is estimated to be 0.5 μW, and the instantaneous bandwidth is 2.2 GHz. At an intermediate frequency centered at 1.4 GHz with 200 MHz bandwidth, the double sideband receiver noise temperature is 410 K at 430 GHz. The receiver has been used to detect molecular line emission in a laboratory gas cell. SN - 0003-6951 UR - http://aip.scitation.org/doi/10.1063/1.118634 UR - https://doi.org/10.1063/1.118634 DO - 10.1063/1.118634 N1 - exported from refbase (https://db.rplab.ru/refbase/show.php?record=1599), last updated on Tue, 25 May 2021 21:57:19 -0500 ID - Kawamura_etal1997 ER -