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Shcherbatenko, M. (author), Lobanov, Y. (author), Benderov, O. (author), Shurakov, A. (author), Ignatov, A. (author), Titova, N. (author), Finkel, M. (author), Maslennikov, S. (author), Kaurova, N. (author), Voronov, B.M. (author), Rodin, A. (author), Klapwijk, T.M. (author), Gol'tsman, G.N. (author)We report on design and characterization of a superconducting Hot Electron Bolometer Mixer integrated with a logarithmic spiral antenna for mid-IR range observations. The antenna parameters have been adjusted to achieve the ultimate performance at 10 ?m (30 THz) range where O3, NH3, CO2, CH4, N2O, . lines in the Earth’s atmosphere, in planetary...conference paper 2015
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Peltonen, J.T. (author), Astafiev, O.V. (author), Korneeva, Y.P. (author), Voronov, B.M. (author), Korneev, A.A. (author), Charaev, I.M. (author), Semenov, A.V. (author), Golt'sman, G.N. (author), Ioffe, L.B. (author), Klapwijk, T.M. (author), Tsai, J.S. (author)We demonstrate evidence of coherent magnetic flux tunneling through superconducting nanowires patterned in a thin highly disordered NbN film. The phenomenon is revealed as a superposition of flux states in a fully metallic superconducting loop with the nanowire acting as an effective tunnel barrier for the magnetic flux, and reproducibly...journal article 2013
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Fedorov, G. (author), Kardakova, A. (author), Gayduchenko, I. (author), Charayev, I. (author), Voronov, B.M. (author), Finkel, M. (author), Klapwijk, T.M. (author), Morozov, S. (author), Presniakov, M. (author), Bobrinetskiy, I. (author), Ibragimov, R. (author), Goltsman, G. (author)We report on the voltage response of carbon nanotube devices to sub-terahertz (THz) radiation. The devices contain carbon nanotubes (CNTs), which are over their length partially suspended and partially Van der Waals bonded to a SiO2 substrate, causing a difference in thermal contact. We observe a DC voltage upon exposure to 140?GHz radiation....journal article 2013