This title appears in the Scientific Report :
2006
Please use the identifier:
http://dx.doi.org/10.1063/1.2336486 in citations.
Please use the identifier: http://hdl.handle.net/2128/17184 in citations.
Terahertz photonic mixers as local oscillators for hot electron bolometer and superconductor-insulator-superconductor astronomical receivers
Terahertz photonic mixers as local oscillators for hot electron bolometer and superconductor-insulator-superconductor astronomical receivers
A pump experiment of two astronomical heterodyne receivers, a superconductor- insulator-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...
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Personal Name(s): | Cámara Mayorga, I. |
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Muñoz Pradas, P. / Michael, E. A. / Mikulics, M. / Schmitz, A. / van der Wal, P. / Kaseman, C. / Güsten, R. / Jacobs, K. / Marso, M. / Lüth, H. / Kordos, P. | |
Contributing Institute: |
Institut für Halbleiterschichten und Bauelemente; ISG-1 Center of Nanoelectronic Systems for Information Technology; CNI |
Published in: | Journal of applied physics, 100 (2006) S. 043116-1 - 043116-4 |
Imprint: |
Melville, NY
American Institute of Physics
2006
|
Physical Description: |
043116-1 - 043116-4 |
DOI: |
10.1063/1.2336486 |
Document Type: |
Journal Article |
Research Program: |
Grundlagen für zukünftige Informationstechnologien |
Series Title: |
Journal of Applied Physics
100 |
Subject (ZB): | |
Link: |
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Publikationsportal JuSER |
Please use the identifier: http://hdl.handle.net/2128/17184 in citations.
A pump experiment of two astronomical heterodyne receivers, a superconductor- insulator-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 and a photonic LO. In both cases, the best receiver noise temperature was identical (T-sys=170 K). (c) 2006 American Institute of Physics. |