Reference : Terahertz photonic mixers as local oscillators for hot electron bolometer and superco...
Scientific journals : Article
Engineering, computing & technology : Electrical & electronics engineering
http://hdl.handle.net/10993/20406
Terahertz photonic mixers as local oscillators for hot electron bolometer and superconductor-insulator-superconductor astronomical receivers, ,
English
Cámara Mayorga, I. [Max-Planck-Institute for Radioastronomy, Auf dem Hügel 69, 53121 Bonn, Germany]
Muñoz Pradas, P. [1. Physics Institute, University of Cologne, Zülpicher Strasse 77, 50937 Cologne, Germany]
Michael, E. A. [1. Physics Institute, University of Cologne, Zülpicher Strasse 77, 50937 Cologne, Germany]
Mikulics, M. [1. Physics Institute, University of Cologne, Zülpicher Strasse 77, 50937 Cologne, Germany]
Schmitz, A. [Max-Planck-Institute for Radioastronomy, Auf dem Hügel 69, 53121 Bonn, Germany]
van der Wal, P. [Max-Planck-Institute for Radioastronomy, Auf dem Hügel 69, 53121 Bonn, Germany]
Kaseman, C. [Max-Planck-Institute for Radioastronomy, Auf dem Hügel 69, 53121 Bonn, Germany]
Güsten, R. [Max-Planck-Institute for Radioastronomy, Auf dem Hügel 69, 53121 Bonn, Germany]
Jacobs, K. [1. Physics Institute, University of Cologne, Zülpicher Strasse 77, 50937 Cologne, Germany]
Marso, Michel mailto [Institute of Thin Films and Interfaces (ISG-1), Research Center Jülich, 52425 Jülich, Germany]
Lüth, H. [Institute of Thin Films and Interfaces (ISG-1), Research Center Jülich, 52425 Jülich, Germany]
Kordoš, P. [Institute of Thin Films and Interfaces (ISG-1), Research Center Jülich, 52425 Jülich, Germany]
2006
Journal of Applied Physics
American Institute of Physics
100
043116
Yes (verified by ORBilu)
0021-8979
Melville
NY
[en] A pump experiment of two astronomical heterodyne receivers, a superconductorinsulator-
superconductor SIS receiver at 450 GHz and a hot-electron-bolometer HEB receiver at
750 GHz, is reported. A low-temperature-grown GaAs metal-semiconductor-metal photonic local
oscillator LO was illuminated by two near infrared semiconductor lasers, generating a beat frequency in the submillimeter range. I-V junction characteristics for different LO pump power levels demonstrate that the power delivered by the photomixer is sufficient to pump a SIS and a
HEB mixer. SIS receiver noise temperatures were compared using a conventional solid-state LO anda photonic LO. In both cases, the best receiver noise temperature was identical Tsys=170 K .
http://hdl.handle.net/10993/20406
10.1063/1.2336486

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