TY - CONF AU - Finkel, M. I. AU - Maslennikov, S. N. AU - Vachtomin, Yu B. AU - Svechnikov, S. I. AU - Smirnov, K. V. AU - Seleznev, V. A. AU - Korotetskaya, Yu P. AU - Kaurova, N. S. AU - Voronov, B. M. AU - Gol'tsman, G. N. PY - 2005 DA - 2005// TI - Hot electron bolometer mixer for 20 - 40 THz frequency range T2 - Proc. 16[super:th] Int. Symp. Space Terahertz Technol. BT - Proc. 16[super:th] Int. Symp. Space Terahertz Technol. SP - 393 EP - 397 CY - Göteborg, Sweden KW - IR NbN HEB mixers AB - The developed HEB mixer was based on a 5 nm thick NbN film deposited on a GaAs substrate. The active area of the film was patterned as a 30×20 μm 2 strip and coupled with a 50 Ohm coplanar line deposited in situ. An extended hemispherical germanium lens was used to focus the LO radiation on the mixer. The responsivity of the mixer was measured in a direct detection mode in the 25÷64 THz frequency range. The noise performance of the mixer and the directivity of the receiver were investigated in a heterodyne mode. A 10.6 μm wavelength CW CO 2 laser was utilized as a local oscillator. UR - https://www.nrao.edu/meetings/isstt/2005.shtml N1 - exported from refbase (https://db.rplab.ru/refbase/show.php?record=369), last updated on Mon, 17 May 2021 18:55:29 -0500 ID - Finkel_etal2005 ER -