Print Email Facebook Twitter Terahertz heterodyne receiver based on a quantum cascade laser and a superconducting bolometer Title Terahertz heterodyne receiver based on a quantum cascade laser and a superconducting bolometer Author Gao, J.R. Hovenier, J.N. Yang, Z.Q. Baselmans, J.J.A. Baryshev, A. Hajenius, M. Klapwijk, T.M. Adam, A.J.L. Klaassen, T.O. Williams, B.S. Kumar, S. Hu, Q. Reno, J.L. Faculty Applied Sciences Department Kavli Institute of Nanoscience Date 2005-06-08 Abstract We report the first demonstration of an all solid-state heterodyne receiver that can be used for high-resolution spectroscopy above 2?THz suitable for space-based observatories. The receiver uses a NbN superconducting hot-electron bolometer as mixer and a quantum cascade laser operating at 2.8?THz as local oscillator. We measure a double sideband receiver noise temperature of 1400?K at 2.8?THz and 4.2?K, and find that the free-running QCL has sufficient power stability for a practical receiver, demonstrating an unprecedented combination of sensitivity and stability. Subject heterodyne detectionbolometerssubmillimetre wave receiverssuperconducting mixersniobium compoundsquantum cascade lasershot carrierssubmillimetre wave mixerssubmillimetre wave oscillators To reference this document use: http://resolver.tudelft.nl/uuid:67b4db37-f870-40aa-80e0-11e51fed44cf DOI https://doi.org/10.1063/1.1949724 Publisher American Institute of Physics ISSN 0003-6951 Source http://link.aip.org/link/APPLAB/v86/i24/p244104/s1 Source Applied Physics Letters, 86 (24), 2005 Part of collection Institutional Repository Document type journal article Rights (c) 2005 The Author(s); American Institute of Physics Files PDF Gao_2005.pdf 308.57 KB Close viewer /islandora/object/uuid:67b4db37-f870-40aa-80e0-11e51fed44cf/datastream/OBJ/view