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Terahertz heterodyne receiver based on a quantum cascade laser and a superconducting bolometer
Gao, J. R., Hovenier, J. N., Yang, Z. Q., Baselmans, J. J. A., Baryshev, A., Hajenius, M., et al. (2005). Terahertz heterodyne receiver based on a quantum cascade laser and a superconducting bolometer. Appl. Phys. Lett., 86, 244104 (1 to 3).
We report the first demonstration of an all solid-stateheterodyne receiver that can be used for high-resolution spectroscopy above 2THz suitable for space-based observatories. The receiver uses a NbN superconducting hot-electron bolometer as mixer and a quantum cascade laser operating at 2.8THz as local oscillator. We measure a double sideband receiver noise temperature of 1400K at 2.8THz and 4.2K, and find that the free-running QCL has sufficient power stability for a practical receiver, demonstrating an unprecedented combination of sensitivity and stability.
Terahertz heterodyne receiver based on a quantum cascade laser and a superconducting bolometerGao, 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.openurl:?ctx_ver=Z39.88-2004&rfr_id=info%3Asid%2Fhttps%3A%2F%2Fdb.rplab.ru%2Frefbase%2F&genre=article&atitle=Terahertz%20heterodyne%20receiver%20based%20on%20a%20quantum%20cascade%20laser%20and%20a%20superconducting%20bolometer&title=Appl.%20Phys.%20Lett.&stitle=Appl.%20Phys.%20Lett.&date=2005&volume=86&spage=244104%20%281%20to%203%29&aulast=Gao&aufirst=J.%20R.&au=Hovenier%2C%20J.%20N.&au=Yang%2C%20Z.%20Q.&au=Baselmans%2C%20J.%20J.%20A.&au=Baryshev%2C%20A.&au=Hajenius%2C%20M.&au=Klapwijk%2C%20T.%20M.&au=Adam%2C%20A.%20J.%20L.&au=Klaassen%2C%20T.%20O.&au=Williams%2C%20B.%20S.&au=Kumar%2C%20S.&au=Hu%2C%20Q.&au=Reno%2C%20J.%20L.&sid=refbase%3ARpLabcitekey:Gao_etal2005Gao, J. R., Hovenier, J. N., Yang, Z. Q., Baselmans, J. J. A., Baryshev, A., Hajenius, M., et al. (2005). Terahertz heterodyne receiver based on a quantum cascade laser and a superconducting bolometer. Appl. Phys. Lett., 86, 244104 (1 to 3).2005JournalArticletextHEB, QCLAppl. Phys. Lett.200586244104