@Article{Svechnikov_etal1997, author="Svechnikov, S. I. and Okunev, O. V. and Yagoubov, P. A. and Gol{\textquoteright}tsman, G. N. and Voronov, B. M. and Cherednichenko, S. I. and Gershenzon, E. M. and Gerecht, E. and Musante, C. F. and Wang, Z. and Yngvesson, K. S.", title="2.5 THz NbN hot electron mixer with integrated tapered slot antenna", journal="IEEE Trans. Appl. Supercond.", year="1997", volume="7", number="2", pages="3548--3551", optkeywords="NbN HEB mixers", abstract="A Hot Electron Bolometer (HEB) mixer for 2.5 THz utilizing a NbN thin film device, integrated with a Broken Linearly Tapered Slot Antenna (BLTSA), has been fabricated and is presently being tested. The NbN HEB device and the antenna were fabricated on a SiO$_{2}$membrane. A 0.5 micrometer thick SiO$_{2}$layer was grown by rf magnetron reactive sputtering on a GaAs wafer. The HEB device (phonon-cooled type) was produced as several parallel strips, 1 micrometer wide, from an ultrathin NbN film 4-7 nm thick, that was deposited onto the SiO$_{2}$layer by dc magnetron reactive sputtering. The BLTSA was photoetched in a multilayer Ti-Au metallization. In order to strengthen the membrane, the front-side of the wafer was coated with a 5 micrometer thick polyimide layer just before the membrane formation. The last operation was anisotropic etching of the GaAs in a mixture of HNO$_{3}$and H$_{2}$O$_{2}$.", optnote="exported from refbase (https://db.rplab.ru/refbase/show.php?record=1595), last updated on Tue, 25 May 2021 21:32:25 -0500", issn="1051-8223", doi="10.1109/77.622163", opturl="http://ieeexplore.ieee.org/document/622163/", opturl="https://doi.org/10.1109/77.622163" }