@Article{Tretyakov_etal2018, author="Tretyakov, I. V. and Anfertyev, V. A. and Revin, L. S. and Kaurova, N. S. and Voronov, B. M. and Vaks, V. L. and Goltsman, G. N.", title="Sensitivity and resolution of a heterodyne receiver based on the NbN HEB mixer with a quantum-cascade laser as a local oscillator", journal="Radiophys. Quant. Electron.", year="2018", volume="60", number="12", pages="988--992", optkeywords="NbN HEB mixer", abstract="We present the results of experimental studies of the basic characteristics and operation features of a terahertz heterodyne detector based on the superconducting NbN HEB mixer and a quantum cascade laser as a local oscillator operating at a frequency of 2.02 THz. The measured noise temperature of such a mixer amounted to 1500 K. The spectral resolution of the detector is determined by the width of the local-oscillator spectral line whose measured value does not exceed 1 MHz. The quantum-cascade laser could be linearly tuned with respect to frequency with the coefficient 7.2 MHz/mA within the limits of the current oscillation bandwidth.", optnote="exported from refbase (https://db.rplab.ru/refbase/show.php?record=1307), last updated on Sun, 09 May 2021 18:41:20 -0500", issn="0033-8443", doi="10.1007/s11141-018-9863-x", opturl="http://link.springer.com/10.1007/s11141-018-9863-x", opturl="https://doi.org/10.1007/s11141-018-9863-x" }